- where it seems the reference contains invalid skeleton
- refSkeleton access seems violated
- copied Jaren's fix w.r.t. evaluation crash due to setting different AnimBP in the middle of evaluation
#code review: Thomas.Sarkanen
#jira: FORT-160974, FORT-149957
#ROBOMERGE-SOURCE: CL 5672339 via CL 5675808
[CL 5675866 by lina halper in Main branch]