Re-basing Animblueprint class causes BP compile crash

Development Character & Animation
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1

The similar issue has been handled in link text

The difference is that I’m having trouble with IKinema plugin and reproducing steps. The steps to reproduce my problem is a little bit more complex.

  1. Make a C++ class that inherits UAnimInstance(Let’s call it A) and compile.

  2. Make an animblueprint as a child of C++ class in 1) (Let’s call it K)

  3. Make an IKinema Rig.

  4. Make another C++ class that inherits UAnimInstance(Let’s call it B). Declare variables of which type is FIKinemaSolverTask, FIKinemaSolverLookAtTask

  5. Change class A’s parent to B(Yeah… there are a lot of reasons to do this…)

  6. Re-compile C++ project and run the editor and open K and place IKinemaSolver using the IKinema Rig and connect task nodes to variables declared in step 4)

  7. Compile and save K.

  8. Try to recompile K without changing anything.

Now, the editor crashes like the issu, UE-29613.

Oh, please help me!!

FYI, I’m gonna ask IKinema guys about this issue too.

2

FYI, I’ve got a fixed source codes from IKinema. After testing the fixed codes being integrated into my project, I’ll close this question.