So, this has the ACT operating? First thing I would suggest is that you turn the ACT off. Then try again.

This is not an LOL matter. This is serious because it could very well cause a crash.

Hobbico has the Nextstar with AFS.. pretty much the same thing. I trained with the Nexstar and we quickly learned to disconnect the AFS sensor and operate it without it.
This may be the same case with your Super Cub.

CGr.