Dev Kit crashes when trying to ride Megachelon

When i try to ride my Dino variant of the megachelon my dev kit crashes. It also happens when i only copy the GiantTurtle_Character_BP and try to ride it…

Assertion failed: ((UObject*)ContainerPtr)->IsA((UClass*)GetOuter()) [File:F:\build\ARKModKit\Internal\Engine\Source\Runtime\CoreUObject\Public\UObject\UnrealType.h] [Line: 358]
‘TestGiantTurtle_Character_BP_C_25’ is of class ‘TestGiantTurtle_Character_BP_C’ however property ‘bIsBreathing’ belongs to class ‘GiantTurtle_Character_BP_C’

VERSION: 310.27
KERNELBASE.dll!UnknownFunction (0x00007ffa80459709) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffa4ad2f50d) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffa4ac12958) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffa4abe40a2) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f14a98a) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f122f0c) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffa2603da73) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f082acf) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f0f708d) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f122f0c) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f1243ff) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f082acf) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffa4f123b32) + 0 bytes [UnknownFile:0]
UE4Editor-UMG.dll!UnknownFunction (0x00007ffa2210d948) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffa49ddcefa) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffa49de7d78) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffa49f53f53) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffa49f547f6) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a81e3c7) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffa4a870153) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffa49e53d2a) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffa49e53863) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff77f4db2af) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff77f4cfb3f) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff77f4cfbaa) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff77f4dca9e) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff77f4dd9d9) + 0 bytes [UnknownFile:0]
KERNEL32.DLL!UnknownFunction (0x00007ffa83617974) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffa843ca271) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffa843ca271) + 0 bytes [UnknownFile:0]

Sounds like you copied the blueprint and one of the graph nodes expects object of class or subclass of GiantTurtle_Character_BP_C. Try creating a child instead of cloning it, or fix the references that cause the type mismatch.

thx sir, making a child of it worked.