I have a blueprint which works well now and before but if I changed any property of the blueprint (e.g initial speed of projectile) the editor crashed. What’s confused me is the blueprint works fine but I can’t change anything.
Here is the crash log
Assertion failed: !IsPendingKill() [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Engine/Private/ActorConstruction.cpp] [Line: 677]
0x00007ffd16754ed9 KERNELBASE.dll!UnknownFunction []
0x00007ffcbb7ed066 UE4Editor-Core.dll!UnknownFunction []
0x00007ffcbb7f07a8 UE4Editor-Core.dll!UnknownFunction []
0x00007ffcbb4fe8cd UE4Editor-Core.dll!UnknownFunction []
0x00007ffcbb495575 UE4Editor-Core.dll!UnknownFunction []
0x00007ffcbb497620 UE4Editor-Core.dll!UnknownFunction []
0x00007ffcb32cdf56 UE4Editor-Engine.dll!UnknownFunction []
0x00007ffcb32f3d97 UE4Editor-Engine.dll!UnknownFunction []
0x00007ffcb368b3e9 UE4Editor-Engine.dll!UnknownFunction []
0x00007ffcb374ed35 UE4Editor-Engine.dll!UnknownFunction []
0x00007ffcbadf4f90 UE4Editor-CoreUObject.dll!UnknownFunction []
0x00007ffcb36abaa6 UE4Editor-Engine.dll!UnknownFunction []
0x00007ffcbadf7196 UE4Editor-CoreUObject.dll!UnknownFunction []
0x00007ffcbadf4c8b UE4Editor-CoreUObject.dll!UnknownFunction []
0x00007ffcb36abaa6 UE4Editor-Engine.dll!UnknownFunction []
0x00007ffcb0616d54 UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb05ff05a UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb05ff5a8 UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb05ff3f9 UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb0658acb UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb063d5f4 UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb05c2fd6 UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb0617e22 UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcb062f20f UE4Editor-PropertyEditor.dll!UnknownFunction []
0x00007ffcbd0646be UE4Editor-Slate.dll!UnknownFunction []
0x00007ffcbd0e7f14 UE4Editor-Slate.dll!UnknownFunction []
0x00007ffcbd0d0337 UE4Editor-Slate.dll!UnknownFunction []
0x00007ffcbd0c3632 UE4Editor-Slate.dll!UnknownFunction []
0x00007ffcfcc3bcb5 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00007ffcfcc29197 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00007ffcfcc3e389 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00007ffcfcc24310 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00007ffd1713e858 USER32.dll!UnknownFunction []
0x00007ffd1713e299 USER32.dll!UnknownFunction []
0x00007ffcfcc3f914 UE4Editor-ApplicationCore.dll!UnknownFunction []
0x00007ff63b058848 UE4Editor.exe!UnknownFunction []
0x00007ff63b07117c UE4Editor.exe!UnknownFunction []
0x00007ff63b07125a UE4Editor.exe!UnknownFunction []
0x00007ff63b0852bd UE4Editor.exe!UnknownFunction []
0x00007ff63b087fea UE4Editor.exe!UnknownFunction []
0x00007ffd18347034 KERNEL32.DLL!UnknownFunction []
0x00007ffd18ae2651 ntdll.dll!UnknownFunction []