It was an accident. Put most of the backsplash with the proper adhesive. Picked up the wrong bucket for the last 5 sq feet. The stuff has almost set (20 hrs). The tile seems to be in place for now. Should I redo ?
Edit: Paid heed to advice and pulled the tiles off. It was surprisingly easy to come off. Maybe the tile prevented it from drying and setting too fast. The wall has been scraped. Will allow the remainder to dry out and then sand it. Also soaked the tiles in warm soap water and was able to brush off most of the compound with an old tooth brush. I am set back by a couple days but that's about it. Redditors saved the day. You guys are awesome.
MediumRarePorkChop t1_izsji8y wrote
Tear it out. Luckily if it's just drywall mud you can soak it and clean the tile. No blood no penalty, right?