Okay, I agree that’s the case then.
Problem is that it doesn’t always trigger, so there must be some additional circumstances.
Same goes for the freezing effect as well since 4.2 update. If the AI takes its turn and gets the exact mana color with its frozen unit, getting a 4-5 match/es or further cascades in a row, the AI will not skip its turn, even though you can see and hear the Freezing effect being re-applied, sometimes more than once in a row.
It’s not always happening, but I noticed it at least three times today.
I don’t think that’s related to Skeleton Key. For a year or so I sometimes don’t get an extra turn from spells that grant it and still occasionally don’t get an extra turn from 4/5 matches.