After updating to the most recent release (5.4, release Feb 8), the trigger effects for Part the Waterveil (match 5 gems) and Ulvenwald Hydra (match 3 gems). In addition, Prism Array also fails to trigger on a landfall match, but that’s already being discussed in a different thread. This behavior was encountered while playing matches in the Trial of the Planes: Blue event. Prior to this update, I know for a fact that these trigger effects were functioning just fine. I guess that’ll teach me to not update my game version in the middle of an event, right?
This issue should be pretty easy to reproduce.
Edit: Had the version wrong.