Quote from Diki " And never, never, NEVER turn on any of the auto stuff while you play with real people!" end of quote

Three "nevers" is too much of an absolute IMO. but generally valid for optimum group playing.

I played and directed a fifteen piece volunteer senior band from 2004 to 2019. Natural attrition and other factors led to uncertain attendance, which, in turn, brought about the need for drastic measures to pull off the dances at times. I could cover some absent parts, but drums, bass, and piano were more critical. I have resorted to providing click tracks and other feeds via multiple headphones, only when absolutely necessary.

The results varied wildly depending on:
1. Could they hear ?
2. Could they count time?
3. Would the try to be part of a cohesive group, or a grandstander?

The only success I had was if the drummer and/or piano play was there. They were able to keep up with minimal arranger accomp. The biggest problem was with the group falling behind or ahead because the drummer or piano was not forceful enough to command strict tempo, and I was committed to a static beat.

When I said Diki was generally correct, I meant under normal circumstances, which mine weren't.