Has anyone found a solution for this by any chance? Or workaround, or indication of what it could relate to?
I’m experiencing a similar problem with 4.25 (“Ensure condition failed: GetSuperClass() [File:[…]BlueprintGeneratedClass.cpp”) for a project that is packaging fine with 4.18-4.24.
My issue: https://forums.unrealengine.com/comm…iles-unhelpful
Edit: After some painful hours of searching a needle in a haystack, I think I finally found the issue.
It essentially comes down to 4.25 not coping well with any type of circular reference between two Blueprint assets (in my case an Actor Class and a Function Library) which were perfectly fine before, even with nativization enabled.
It would have been much easier if the cooker at least indicated the object it had problems with…