Hi, so I had people reporting this bug, and recently experienced it when I updated my device from 3.0.0 to 3.0.2. Now I can confirm it's due to the current version.
Basically, the bug happens (I guess) when you are using setDrawOffset(), and opening and closing the pause menu seems to reset the drawOffset, and my "Camera" class smoothes this value such that you get this weird animation.
I'm using a draw xOffset in pause menu image (of 100 if I recall correctly).
Here's a recording of simulator, showing no such bug (3.0.0 on-device was like this):
Here's a recording of 3.0.2 on-device:
Let me know if you need help reproducing. My game engine code is open-source 