At a recent gig the band changed from a very strongly phrased tune to something totally dreamy for their second (it was a good fit for the dance "feel" but very understated in rhythm). I immediately noticed some dancers looking somewhat visibly lost and drifting off time, so I had to jump back in with minimal cues to help align. They again found their timing so I could drop out once more and the third tune came back to strong phrasing so all finished well.
Still working on my band communication skills re: tunes selection. Lots of ongoing learning!