I seem to be having an issue with the Simple Delay time. The first echo seems to be coming much earlier than the tapped tempo. This issue just appeared Saturday night, after a few weeks of running 2.81. Rebooting didn't seem to help -- once a new time is tapped in, the issue starts again.
A workaround for this until they fix it might be to move one of those amps into path 1A, leave both amps on all the time, and change the split so that it routes 100% to either path 1A or 1B, changed by the snapshot. This is what I'm currently doing.