diff --git a/packages/app-core/src/ui/App/ViewContainer.tsx b/packages/app-core/src/ui/App/ViewContainer.tsx
index 88da586da3..d48826131b 100644
--- a/packages/app-core/src/ui/App/ViewContainer.tsx
+++ b/packages/app-core/src/ui/App/ViewContainer.tsx
@@ -1,20 +1,13 @@
-import React, { useEffect, useRef } from 'react'
-import { IconButton, Paper, useTheme } from '@mui/material'
+import React, { useEffect } from 'react'
+import { Paper, useTheme } from '@mui/material'
 import { makeStyles } from 'tss-react/mui'
 import { observer } from 'mobx-react'
 import { getSession, useWidthSetter } from '@jbrowse/core/util'
-import clsx from 'clsx'
 import { IBaseViewModel } from '@jbrowse/core/pluggableElementTypes/models'
 import { SessionWithFocusedViewAndDrawerWidgets } from '@jbrowse/core/util'
 
-// icons
-import CloseIcon from '@mui/icons-material/Close'
-import MinimizeIcon from '@mui/icons-material/Minimize'
-import AddIcon from '@mui/icons-material/Add'
-
 // locals
-import ViewMenu from './ViewMenu'
-import ViewContainerTitle from './ViewContainerTitle'
+import ViewHeader from './ViewHeader'
 
 const useStyles = makeStyles()(theme => ({
   viewContainer: {
@@ -22,12 +15,6 @@ const useStyles = makeStyles()(theme => ({
     margin: theme.spacing(0.5),
     padding: `0 ${theme.spacing(1)} ${theme.spacing(1)}`,
   },
-  icon: {
-    color: theme.palette.secondary.contrastText,
-  },
-  grow: {
-    flexGrow: 1,
-  },
   focusedView: {
     background: theme.palette.secondary.main,
   },
@@ -47,18 +34,11 @@ const ViewContainer = observer(function ({
   onMinimize: () => void
   children: React.ReactNode
 }) {
-  const { classes } = useStyles()
   const theme = useTheme()
   const ref = useWidthSetter(view, theme.spacing(1))
-  const scrollRef = useRef<HTMLDivElement>(null)
+  const { classes, cx } = useStyles()
   const session = getSession(view) as SessionWithFocusedViewAndDrawerWidgets
 
-  // scroll the view into view when first mounted. note: this effect will run
-  // only once, because of the empty array second param
-  useEffect(() => {
-    scrollRef.current?.scrollIntoView?.({ block: 'center' })
-  }, [])
-
   useEffect(() => {
     function handleSelectView(e: Event) {
       if (e.target instanceof Element) {
@@ -80,30 +60,14 @@ const ViewContainer = observer(function ({
     <Paper
       ref={ref}
       elevation={12}
-      className={clsx(
+      className={cx(
         classes.viewContainer,
         session.focusedViewId === view.id
           ? classes.focusedView
           : classes.unfocusedView,
       )}
     >
-      <div ref={scrollRef} style={{ display: 'flex' }}>
-        <ViewMenu model={view} IconProps={{ className: classes.icon }} />
-        <div className={classes.grow} />
-
-        <ViewContainerTitle view={view} />
-        <div className={classes.grow} />
-        <IconButton data-testid="minimize_view" onClick={onMinimize}>
-          {view.minimized ? (
-            <AddIcon className={classes.icon} fontSize="small" />
-          ) : (
-            <MinimizeIcon className={classes.icon} fontSize="small" />
-          )}
-        </IconButton>
-        <IconButton data-testid="close_view" onClick={onClose}>
-          <CloseIcon className={classes.icon} fontSize="small" />
-        </IconButton>
-      </div>
+      <ViewHeader view={view} onClose={onClose} onMinimize={onMinimize} />
       <Paper>{children}</Paper>
     </Paper>
   )
diff --git a/packages/app-core/src/ui/App/ViewHeader.tsx b/packages/app-core/src/ui/App/ViewHeader.tsx
new file mode 100644
index 0000000000..c4f641c5ed
--- /dev/null
+++ b/packages/app-core/src/ui/App/ViewHeader.tsx
@@ -0,0 +1,66 @@
+import React, { useEffect, useRef } from 'react'
+import { IconButton } from '@mui/material'
+import { makeStyles } from 'tss-react/mui'
+import { observer } from 'mobx-react'
+import { IBaseViewModel } from '@jbrowse/core/pluggableElementTypes/models'
+
+// icons
+import CloseIcon from '@mui/icons-material/Close'
+import MinimizeIcon from '@mui/icons-material/Minimize'
+import AddIcon from '@mui/icons-material/Add'
+
+// locals
+import ViewMenu from './ViewMenu'
+import ViewContainerTitle from './ViewContainerTitle'
+
+const useStyles = makeStyles()(theme => ({
+  icon: {
+    color: theme.palette.secondary.contrastText,
+  },
+  grow: {
+    flexGrow: 1,
+  },
+  viewHeader: {
+    display: 'flex',
+  },
+}))
+
+const ViewHeader = observer(function ({
+  view,
+  onClose,
+  onMinimize,
+}: {
+  view: IBaseViewModel
+  onClose: () => void
+  onMinimize: () => void
+}) {
+  const { classes } = useStyles()
+  const scrollRef = useRef<HTMLDivElement>(null)
+
+  // scroll the view into view when first mounted. note: this effect will run
+  // only once, because of the empty array second param
+  useEffect(() => {
+    scrollRef.current?.scrollIntoView?.({ block: 'center' })
+  }, [])
+  return (
+    <div ref={scrollRef} className={classes.viewHeader}>
+      <ViewMenu model={view} IconProps={{ className: classes.icon }} />
+      <div className={classes.grow} />
+
+      <ViewContainerTitle view={view} />
+      <div className={classes.grow} />
+      <IconButton data-testid="minimize_view" onClick={onMinimize}>
+        {view.minimized ? (
+          <AddIcon className={classes.icon} fontSize="small" />
+        ) : (
+          <MinimizeIcon className={classes.icon} fontSize="small" />
+        )}
+      </IconButton>
+      <IconButton data-testid="close_view" onClick={onClose}>
+        <CloseIcon className={classes.icon} fontSize="small" />
+      </IconButton>
+    </div>
+  )
+})
+
+export default ViewHeader
diff --git a/packages/core/pluggableElementTypes/models/baseTrackConfig.ts b/packages/core/pluggableElementTypes/models/baseTrackConfig.ts
index 0d1ad33991..1222f2cb8c 100644
--- a/packages/core/pluggableElementTypes/models/baseTrackConfig.ts
+++ b/packages/core/pluggableElementTypes/models/baseTrackConfig.ts
@@ -148,19 +148,19 @@ export function createBaseTrackConfig(pluginManager: PluginManager) {
           type: string
           displays: { type: string; displayId: string }[]
         }
-        const displayTypes = new Set()
         const { displays = [] } = snap
         if (snap.trackId !== 'placeholderId') {
           // Gets the displays on the track snapshot and the possible displays
           // from the track type and adds any missing possible displays to the
           // snapshot
-          displays.forEach(d => d && displayTypes.add(d.type))
-          const trackType = pluginManager.getTrackType(snap.type)
-          trackType.displayTypes.forEach(displayType => {
-            if (!displayTypes.has(displayType.name)) {
+          const configDisplayTypes = new Set(
+            displays.filter(d => !!d).map(d => d.type),
+          )
+          pluginManager.getTrackType(snap.type).displayTypes.forEach(d => {
+            if (!configDisplayTypes.has(d.name)) {
               displays.push({
-                displayId: `${snap.trackId}-${displayType.name}`,
-                type: displayType.name,
+                displayId: `${snap.trackId}-${d.name}`,
+                type: d.name,
               })
             }
           })
diff --git a/plugins/linear-genome-view/src/LinearGenomeView/components/LinearGenomeView.tsx b/plugins/linear-genome-view/src/LinearGenomeView/components/LinearGenomeView.tsx
index 9b0e42483b..44d6ffb030 100644
--- a/plugins/linear-genome-view/src/LinearGenomeView/components/LinearGenomeView.tsx
+++ b/plugins/linear-genome-view/src/LinearGenomeView/components/LinearGenomeView.tsx
@@ -2,6 +2,7 @@ import React, { lazy, useEffect, useRef } from 'react'
 import { Button, Paper, Typography } from '@mui/material'
 import { makeStyles } from 'tss-react/mui'
 import { LoadingEllipses } from '@jbrowse/core/ui'
+import { getSession } from '@jbrowse/core/util'
 import { observer } from 'mobx-react'
 
 // icons
@@ -11,7 +12,6 @@ import { TrackSelector as TrackSelectorIcon } from '@jbrowse/core/ui/Icons'
 import { LinearGenomeViewModel } from '..'
 import TrackContainer from './TrackContainer'
 import TracksContainer from './TracksContainer'
-import { getSession } from '@jbrowse/core/util'
 
 const ImportForm = lazy(() => import('./ImportForm'))
 
@@ -23,16 +23,45 @@ const useStyles = makeStyles()(theme => ({
     paddingTop: theme.spacing(1),
     paddingBottom: theme.spacing(1),
   },
+  rel: {
+    position: 'relative',
+  },
 }))
 
+function NoTracksActive({ model }: { model: LinearGenomeViewModel }) {
+  const { classes } = useStyles()
+  const { hideNoTracksActive } = model
+  return (
+    <Paper className={classes.note}>
+      {!hideNoTracksActive ? (
+        <>
+          <Typography>No tracks active.</Typography>
+          <Button
+            variant="contained"
+            color="primary"
+            onClick={() => model.activateTrackSelector()}
+            style={{ zIndex: 1000 }}
+            startIcon={<TrackSelectorIcon />}
+          >
+            Open track selector
+          </Button>
+        </>
+      ) : (
+        <div style={{ height: '48px' }}></div>
+      )}
+    </Paper>
+  )
+}
+
 const LinearGenomeView = observer(({ model }: { model: LGV }) => {
   const { tracks, error, initialized, hasDisplayedRegions } = model
-  const { classes } = useStyles()
   const ref = useRef<HTMLDivElement>(null)
   const session = getSession(model)
+  const { classes } = useStyles()
 
   useEffect(() => {
-    // sets the focused view id based on a click within the LGV; necessary for subviews to be focused properly
+    // sets the focused view id based on a click within the LGV;
+    // necessary for subviews to be focused properly
     function handleSelectView(e: Event) {
       if (e.target instanceof Element && ref?.current?.contains(e.target)) {
         session.setFocusedViewId?.(model.id)
@@ -58,29 +87,12 @@ const LinearGenomeView = observer(({ model }: { model: LGV }) => {
   const HeaderComponent = model.HeaderComponent()
 
   return (
-    <div style={{ position: 'relative' }} ref={ref}>
+    <div className={classes.rel} ref={ref}>
       <HeaderComponent model={model} />
       <MiniControlsComponent model={model} />
       <TracksContainer model={model}>
         {!tracks.length ? (
-          <Paper variant="outlined" className={classes.note}>
-            {!model.hideNoTracksActive ? (
-              <>
-                <Typography>No tracks active.</Typography>
-                <Button
-                  variant="contained"
-                  color="primary"
-                  onClick={model.activateTrackSelector}
-                  style={{ zIndex: 1000 }}
-                  startIcon={<TrackSelectorIcon />}
-                >
-                  Open track selector
-                </Button>
-              </>
-            ) : (
-              <div style={{ height: '48px' }}></div>
-            )}
-          </Paper>
+          <NoTracksActive model={model} />
         ) : (
           tracks.map(track => (
             <TrackContainer key={track.id} model={model} track={track} />
diff --git a/plugins/linear-genome-view/src/LinearGenomeView/components/OverviewRubberband.tsx b/plugins/linear-genome-view/src/LinearGenomeView/components/OverviewRubberband.tsx
index e24d31a802..dd209ec183 100644
--- a/plugins/linear-genome-view/src/LinearGenomeView/components/OverviewRubberband.tsx
+++ b/plugins/linear-genome-view/src/LinearGenomeView/components/OverviewRubberband.tsx
@@ -25,6 +25,9 @@ const useStyles = makeStyles()({
     position: 'absolute',
     zIndex: 10,
   },
+  rel: {
+    position: 'relative',
+  },
 })
 
 const HoverTooltip = observer(function ({
@@ -155,7 +158,7 @@ const OverviewRubberband = observer(function OverviewRubberband({
 
   if (startX === undefined) {
     return (
-      <div style={{ position: 'relative' }}>
+      <div className={classes.rel}>
         {guideX !== undefined ? (
           <HoverTooltip
             model={model}
@@ -195,7 +198,7 @@ const OverviewRubberband = observer(function OverviewRubberband({
   }
 
   return (
-    <div style={{ position: 'relative' }}>
+    <div className={classes.rel}>
       {leftBpOffset && rightBpOffset ? (
         <RubberbandSpan
           leftBpOffset={leftBpOffset}
diff --git a/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.tsx.snap b/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.tsx.snap
index 0ace31c443..a5adc826ff 100644
--- a/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.tsx.snap
+++ b/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.tsx.snap
@@ -3,11 +3,11 @@
 exports[`renders one track, one region 1`] = `
 <div>
   <div
-    style="position: relative;"
+    class="css-1v4ghfe-rel"
   >
     <div>
       <div
-        style="position: relative;"
+        class="css-1v4ghfe-rel"
       >
         <div
           class="css-dznme2-rubberbandControl"
@@ -560,11 +560,11 @@ exports[`renders one track, one region 1`] = `
 exports[`renders two tracks, two regions 1`] = `
 <div>
   <div
-    style="position: relative;"
+    class="css-1v4ghfe-rel"
   >
     <div>
       <div
-        style="position: relative;"
+        class="css-1v4ghfe-rel"
       >
         <div
           class="css-dznme2-rubberbandControl"
diff --git a/plugins/linear-genome-view/src/LinearGenomeView/model.ts b/plugins/linear-genome-view/src/LinearGenomeView/model.ts
index c03877369e..86edb0b69e 100644
--- a/plugins/linear-genome-view/src/LinearGenomeView/model.ts
+++ b/plugins/linear-genome-view/src/LinearGenomeView/model.ts
@@ -1522,22 +1522,15 @@ export function stateModelFactory(pluginManager: PluginManager) {
           if (session.focusedViewId === self.id && (e.ctrlKey || e.metaKey)) {
             if (e.code === 'ArrowLeft') {
               e.preventDefault()
-              // pan left
               self.slide(-0.9)
-            }
-            if (e.code === 'ArrowRight') {
+            } else if (e.code === 'ArrowRight') {
               e.preventDefault()
-              // pan right
               self.slide(0.9)
-            }
-            if (e.code === 'ArrowUp' && self.scaleFactor === 1) {
+            } else if (e.code === 'ArrowUp' && self.scaleFactor === 1) {
               e.preventDefault()
-              // zoom in
               self.zoom(self.bpPerPx / 2)
-            }
-            if (e.code === 'ArrowDown' && self.scaleFactor === 1) {
+            } else if (e.code === 'ArrowDown' && self.scaleFactor === 1) {
               e.preventDefault()
-              // zoom out
               self.zoom(self.bpPerPx * 2)
             }
           }
diff --git a/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap b/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap
index a39af1ef63..c8eab69fe0 100644
--- a/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap
+++ b/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap
@@ -83,11 +83,11 @@ exports[`<JBrowseLinearGenomeView /> renders successfully 1`] = `
           class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation1 css-1ps6pg7-MuiPaper-root"
         >
           <div
-            style="position: relative;"
+            class="css-1v4ghfe-rel"
           >
             <div>
               <div
-                style="position: relative;"
+                class="css-1v4ghfe-rel"
               >
                 <div
                   class="css-dznme2-rubberbandControl"
diff --git a/yarn.lock b/yarn.lock
index 6e464cab43..459a383b6e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5836,9 +5836,9 @@ available-typed-arrays@^1.0.5:
   integrity sha512-DMD0KiN46eipeziST1LPP/STfDU0sufISXmjSgvVsoU2tqxctQeASejWcfNtxYKqETM1UxQ8sp2OrSBWpHY6sw==
 
 aws-sdk@^2.1231.0:
-  version "2.1477.0"
-  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1477.0.tgz#ec878ea5584fee217eb02ec8f6ebfd9ace47f908"
-  integrity sha512-DLsrKosrKRe5P1E+BcJAVpOXkma4oUOrcyBUridDmUhdf9k3jj5dnL1roFuDpTmNDDhK8a1tUgY3wmXoKQtv7A==
+  version "2.1478.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.1478.0.tgz#30edc3a34fb0c40f30e5512e5e02c630ef849022"
+  integrity sha512-F+Ud9FxMD4rwvGbEXn7qc25Q19N4p+9klRjiH1llFLYssPw6TRtY464Cry/jG4OzuYkE/DsnhcwVFEJjGvMmuQ==
   dependencies:
     buffer "4.9.2"
     events "1.1.1"