Animation blueprint inheritance loses functionality upon exit

I have an animation blueprint that inherits from another animation blueprint. Everything works great until I exit Unreal and then restart. The child animation blueprint does not work until I open it and recompile. Then it works fine again.

Hi gmxtian,

I’m unable to reproduce this behavior. Would you be comfortable uploading an example project?

If you’d like to, you can upload to a cloud storage service and then PM me the link on the forums.


Hi gmxtian,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.



We are experiencing the same problem.

We have a class in C++ which inherits from UAnimInstance. We have a Animation Blueprint which inherits from this C++ class which contains the Animation Graph and the Event Graph flow. The issue accurs when we make a Child Animation blueprint from this Animation Blueprint.

So the final inheritence looks like this:
UAnimInstance → Native C++ → AnimBlueprint → AnimBlueprintChild

We’re using 4.10

Hi marcules,

Thanks for helping. However, since this is a rather old thread, would you mind starting a new one? This may fall to one of our C++ guys to reproduce.