As with scanning videos, you can use the option "Stop scanning" in the retractable side menu on the left. If that option does not work, then it is a bug.
Maybe bug happen when multi scanning running, later i noticed music scanner was stopped and video scanner running. Before i noticed only music scanner running.
This is minor bug actually and possible happen very rare.
BTW Temperature not show (it show ?, revision0000, serial 00000000000000000) anything Wetek Play, i noticed it come very hot when i make full scan. I hope this information can add. Maybe battery info can remove, because battery none.