Having similar issues I suspect. Does seem to be blueprint related. After wiping all project settings I was able to use the List of world Blueprints tab (which used to crash the editor] but even creating a new blank actor blueprint and trying to open it causes the editor to crash with this.
[EDIT] A new blank Actor BP would open to show default values ONLY if it was saved. Trying to then Open Full Blueprint Editor would cause a crash again.
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x0000002a00000032
UnrealEditor_Core
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_Kismet
UnrealEditor_Kismet
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user32
user32
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kernel32
ntdll