Crash Occurs When Opening a Second Sequence After Altering the First While Simulating in Editor

-When opening a second sequence after altering the one prior(locking and unlocking the camera) while simulating in the editor, leads to a crash
-Did not occur in 4.19 Preview 1
-As for the link to the UDN: this is issue SequencerCrashA
-Crash would not display callstack even though Debug symbols are installed but one is available in the UDN post

Related: https://jira.it.epicgames.net/browse/UE-54624

1. Open attached project
2. Simulate in editor
3. Open the SequenceA
4. Lock and unlock the camera
5. Open SequenceB (do not close out of SequenceA in the prior)
6. See crash

Expected: Changing between sequences after locking a camera while simulating does not cause a crash
Results: Changing between sequences when simulating in editor after locking a camera causes crash