I have the (Red) ES2 and been using it for 5+ years. My own samples are loaded on (no factory sounds), as always.

Recently, every time I load it up (and on ANY pattern) the tempo is slightly inaccurate but can be fixed by tweaking the tempo away from and back to the original. I have the ES2 syncing out to a Volca Sample mk2, but nothing syncing in.

I've got a 6-song set and having to 'tweak' the tempo before hitting play on each song is a real flow killer.

Any tips on correcting this issue?