diff --git a/.github/workflows/run.yml b/.github/workflows/run.yml
index b9aca80b..b74025a9 100644
--- a/.github/workflows/run.yml
+++ b/.github/workflows/run.yml
@@ -12,7 +12,7 @@ jobs:
   #    strategy:
   #      fail-fast: false
   #      matrix:
-  #        os: [ macos-12, ubuntu-22.04 ]
+  #        os: [ macos-14, ubuntu-22.04 ]
   #    steps:
   #      - name: Checkout
   #        uses: actions/checkout@v3
@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-12, ubuntu-22.04]
+        os: [macos-14, ubuntu-22.04]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -32,7 +32,7 @@ jobs:
           echo "$HOME/.local/bin" >> $GITHUB_PATH
           echo "$PWD/bin" >> $GITHUB_PATH
       - name: Unbork mac
-        if: matrix.os == 'macos-12'
+        if: matrix.os == 'macos-14'
         run: |
           brew install bash
           echo "/usr/local/bin" >> $GITHUB_PATH
@@ -49,11 +49,11 @@ jobs:
           ./bin/dfx-sns-sale-buy
           ./bin/dfx-sns-sale-finalize
       - name: Create lots of SNS
-        if: matrix.os != 'macos-12'
+        if: matrix.os != 'macos-14'
         run: |
           ./bin/dfx-sns-demo-mksns-parallel -s 10 --config_index_offset 2 -m snsdemo8
       - name: Save state
-        if: matrix.os != 'macos-12'
+        if: matrix.os != 'macos-14'
         run: |
           # Stop the replica to let it persist all its state before we save the state.
           dfx stop
@@ -69,7 +69,7 @@ jobs:
           echo "Saving state"
           bin/dfx-snapshot-save --verbose --snapshot state.tar.xz
       - name: Upload state
-        if: matrix.os != 'macos-12'
+        if: matrix.os != 'macos-14'
         uses: actions/upload-artifact@v3
         with:
           name: snsdemo
@@ -81,7 +81,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-12, ubuntu-22.04]
+        os: [macos-14, ubuntu-22.04]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -90,7 +90,7 @@ jobs:
           echo "$HOME/.local/bin" >> $GITHUB_PATH
           echo "$PWD/bin" >> $GITHUB_PATH
       - name: Unbork mac
-        if: matrix.os == 'macos-12'
+        if: matrix.os == 'macos-14'
         run: |
           brew install bash
           echo "/usr/local/bin" >> $GITHUB_PATH
@@ -115,6 +115,6 @@ jobs:
           ./bin/dfx-sns-sale-buy
           ./bin/dfx-sns-sale-finalize
       - name: Create lots of SNS
-        if: matrix.os != 'macos-12'
+        if: matrix.os != 'macos-14'
         run: |
           ./bin/dfx-sns-demo-mksns-parallel -s 10 --config_index_offset 2 -m snsdemo8
diff --git a/bin/dfx-sns-demo-mksns-parallel b/bin/dfx-sns-demo-mksns-parallel
index 2436135c..36b545cd 100755
--- a/bin/dfx-sns-demo-mksns-parallel
+++ b/bin/dfx-sns-demo-mksns-parallel
@@ -73,10 +73,14 @@ create_all_sns() {
   PROCESSES=()
   echo "I am $$"
   for ((i = 0; i < NUM_SNS_TO_MAKE; i++)); do
+    # Creating wallet canisters in parallel started occasionally failing with
+    # 0.24.1. When creating 10 in parallel, almost always at least 1 would fail.
+    # So we create the users outside the background process.
+    DEMO_USER="snsdemo_$i"
+    make_user "$DEMO_USER"
     (
       echo "Starting $BASHPID"
       DEMO_USER="snsdemo_$i"
-      make_user "$DEMO_USER"
       become_user "$DEMO_USER"
 
       ./bin/dfx-sns-demo-mksns-config --config_index $((CONFIG_INDEX_OFFSET + i)) --unique_logo "$UNIQUE_LOGO"
diff --git a/bin/dfx-stock-deploy b/bin/dfx-stock-deploy
index 7a5b6fb2..5a099f27 100755
--- a/bin/dfx-stock-deploy
+++ b/bin/dfx-stock-deploy
@@ -49,6 +49,13 @@ if [ "${PARALLEL_SNS_COUNT:-0}" -gt 0 ]; then
   dfx-sns-demo-mksns-parallel --network "$DFX_NETWORK" --num_sns "$PARALLEL_SNS_COUNT" --majority snsdemo8 --config_index_offset 2 --unique_logo "$UNIQUE_LOGO"
 fi
 
+SNS_COUNT="$(dfx canister call nns-sns-wasm list_deployed_snses '(record{})' | idl2json | jq -r '.instances | length')"
+EXPECTED_SNS_COUNT="$((2 + PARALLEL_SNS_COUNT))"
+if [[ "$SNS_COUNT" != "$EXPECTED_SNS_COUNT" ]]; then
+  echo "❌ Expected $EXPECTED_SNS_COUNT SNSes. Found $SNS_COUNT"
+  exit 1
+fi
+
 : Set up ckbtc canisters
 dfx-ckbtc-import --prefix ckbtc_
 dfx-ckbtc-deploy --prefix ckbtc_ --network "$DFX_NETWORK" --yes