I’m not sure why this happens, but I’ve frequently seen the incinerate ability do 0 damage while attacking, even ignoring the unit’s basic attack damage. Someone said that this happens while moving and attacking, but I have not been available to verify this. This has been the case for years now, and is pretty important to fix, as it even affects melee, as seen here: https://www.youtube.com/watch?v=Zo3T4ed-qZE. Thanks!