Weird Rotation Bugs under certain circumstances

Playing the level of the attached project you will notice 2 bugs:

  1. The PitchBug Actor won’t rotate past 90°, this seem to be a bug dating back to origin of UE4…
  2. The RotBug Actor rotates weirdly/jerky when the X Axis is not 0 or 180° (related to the negative Scale of the StaticMesh component and non uniform scaling of the actor)

link text

Hello AlexW88,

This is by design. You are experiencing gimbal lock. There are several posts on the AnswerHub that have methods for working around this. One such post is here: