IsRotationNormalized() crash on line trace or physics overlap


I am using the latest version of UE (4.16.2), and getting this crash whenever I make a line/box trace to a character who has a skeletal mesh component, which is governed by a specific Anim BP. I would like to note that my project has several characters with similar setups but different code in Anim BP, but only this one invokes a crash.

I have also faced the same crash when another object with physics was colliding with this character.

Please help :frowning: