Thank you for the feedback. A few questions.
Are you using frame locked mode or the raw timing mode?
Are you starting the playback with the gamepad hotkey or with the keyboard or with the mouse button on the toolkit?
What character are you selecting? What character is being hit?
It would help me if you could record what you see as playback on the recording so I can see what the failure case looks like.
Regarding a reset hotkey for the training mode. This does not exist currently, but is an excellent suggestion. I'll look into adding it soon.