Please refer to the attached project：[Link Removed]
Open TestActor, click Compile
It will fail with the following Error in ProcessScriptFunction in ScriptCore.cpp as PropertiesSize of the Function is 0
Try multiple times, it crash the editor as long as it triggers the AnimNotify End Event
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-86703 in the post.