Not sure exactly what caused the issue but I wrote a fail-safe to prevent this from occurring.
It seems to be functioning fine in both normal and mirror mode, albeit mirror mode is a couple seconds slower.
The changes I made will be live in v11.1 which I just pushed. Before botting with the new version close and restart your clients. If you guys see any more issues please post back with your settings and whether or not you're using mirror mode so I know where to start debugging. Again, sorry for the delay!