Can you elaborate a bit?
You’re still not clear. I suspect that I know what you’re talking about.
I encountered this issue a few times in the past. It’s still happening, but it’s very rare compared to the other stuff that’s going on.
I’ve made a wrongful move (illegal move), when there should be no matches made, but then that gem did not switch back to the previous position, but it just disappeared or it appeared to match with a color that was not compatible - incorrect color match.
Such occurrences were most common when you had a T or L-based matches, also I-matches, when at least one move that connects to that shape that should trigger an extra turn or match, but since it was mismatched - invalid move, no matches should be triggered, yet, that’s what happened somehow.
Instead, an illegal move consumed or triggered a gem and match it with an incorrect color (invalid match).
It appears that I was right all along. I was not imagining it. It was there all along.