NPE when clicking on a mech

[BlueThing00]

Environment

MegaMek 49.19.1
Windows 10
Java Version: 11.0.16

Description

I was fighting a Stratcon battle sent from MekHQ. I started it this morning. I completed the movement phase I was partway through; when I clicked on one of my mechs (I think the Grasshopper) during the shooting phase I got a NPE.

From the log:

15:02:01,091 ERROR [megamek.client.Client] {AWT-EventQueue-0}
megamek.client.Client.handlePacket(Client.java:1712) - Failed to parse Packet command TURN
java.lang.NullPointerException
at megamek.common.IdealHex.get(IdealHex.java:112)
at megamek.common.Coords.radian(Coords.java:236)
at megamek.common.Coords.degree(Coords.java:261)
at megamek.common.Compute.isInArc(Compute.java:4054)
at megamek.common.Compute.isInArc(Compute.java:4020)
at megamek.common.actions.SearchlightAttackAction.isPossible(SearchlightAttackAction.java:68)
at megamek.client.ui.swing.FiringDisplay.updateSearchlight(FiringDisplay.java:2344)
at megamek.client.ui.swing.FiringDisplay.updateTarget(FiringDisplay.java:2011)
at megamek.client.ui.swing.FiringDisplay.target(FiringDisplay.java:1904)
at megamek.client.ui.swing.FiringDisplay.selectEntity(FiringDisplay.java:812)
at megamek.client.ui.swing.FiringDisplay.beginMyTurn(FiringDisplay.java:870)
at megamek.client.ui.swing.FiringDisplay.gameTurnChange(FiringDisplay.java:2216)
at megamek.common.event.GameTurnChangeEvent.fireEvent(GameTurnChangeEvent.java:46)
at megamek.common.Game.processGameEvent(Game.java:3001)
at megamek.common.Game.setTurnIndex(Game.java:650)
at megamek.client.Client.changeTurnIndex(Client.java:516)
at megamek.client.Client.handlePacket(Client.java:1528)
at megamek.client.Client$1.lambda$packetReceived$0(Client.java:177)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Files

Logs:
megamek.log
mekhq.log

Battle save:
autosave.sav.gz

Unit files:
Meks.zip

Campaign save:
Bluethings30260529.cpnx.gz

I didn't upload portrait files or custom paint. Let me know if those are needed.

[HammerGS]

15:02:01,091 ERROR [megamek.client.Client] {AWT-EventQueue-0}
megamek.client.Client.handlePacket(Client.java:1712) - Failed to parse Packet command TURN
java.lang.NullPointerException
at megamek.common.IdealHex.get(IdealHex.java:112)
at megamek.common.Coords.radian(Coords.java:236)
at megamek.common.Coords.degree(Coords.java:261)
at megamek.common.Compute.isInArc(Compute.java:4054)
at megamek.common.Compute.isInArc(Compute.java:4020)
at megamek.common.actions.SearchlightAttackAction.isPossible(SearchlightAttackAction.java:68)
at megamek.client.ui.swing.FiringDisplay.updateSearchlight(FiringDisplay.java:2344)
at megamek.client.ui.swing.FiringDisplay.updateTarget(FiringDisplay.java:2011)
at megamek.client.ui.swing.FiringDisplay.target(FiringDisplay.java:1904)
at megamek.client.ui.swing.FiringDisplay.selectEntity(FiringDisplay.java:812)
at megamek.client.ui.swing.FiringDisplay.beginMyTurn(FiringDisplay.java:870)
at megamek.client.ui.swing.FiringDisplay.gameTurnChange(FiringDisplay.java:2216)
at megamek.common.event.GameTurnChangeEvent.fireEvent(GameTurnChangeEvent.java:46)
at megamek.common.Game.processGameEvent(Game.java:3001)
at megamek.common.Game.setTurnIndex(Game.java:650)
at megamek.client.Client.changeTurnIndex(Client.java:516)
at megamek.client.Client.handlePacket(Client.java:1528)
at megamek.client.Client$1.lambda$packetReceived$0(Client.java:177)

[BlueThing00]

I just reproduced this by starting the battle from the saved game, moving units, and clicking on the Grasshopper in the shooting phase.

[Sleet01]

I'll take it, just on the off-chance that the SearchlightAttackAction connection is not a coincidence...