To reproduce, turn on classic controls and have the left key or the right key held, and then tap the forward key while holding the left/right key. Alternatively, tap a mob and the forward key alternatively on classic controls

It is observed that the interact circle slides into the D-pad. This bug has been appearing since 1.0.0, and has not been fixed since.

The interact circle is not supposed to be slided into the region of the D-pad, or appear in the D-pad zone that interferes any screen activity. 

Video: https://youtu.be/YuZI1yNvJ4o