Beginning to understand – there may be multiple issues. The TF may be playing back too fast, and/or the loop length may be inaccurate. When you say it is ahead of the beat after the restart, can you give a number for how much ?

Presumably if it was playing too fast you would notice, so the error may be mainly in the loop length or the turnaround time. For example, does it stay on the beat during the first playback, and then lose it after the restart ?

If this is the problem, I can look into it.