[Blender] Animation bug

Hi, I have some problems with a basic test animation made with Blender.
I think this video say’s it all:


How do I fix it?
Thank you!

Check in the ue4 if your bones are still at the same position :slight_smile:


Buty why is the scale and rotation wrong? Even the angles between the arms and the body bones is wrong ?!

Go back into blender -> select the armature -> object -> apply -> scale, rotation

This works for the scale, but not for the rotation and the angle of the arm bones.