Playing this afternoon on the R&G essential node. 5* Hawkeye and 5* Black Panther. Twice, Moonstone hit Black panther for 3900 and 3700 (Using Photon Blast). Neither time Move or be moved went off. I have 2 covers in MobM, power is supposed to fire over 3534.
Known issue. The problem is with Photon Blast, not MoBM. It’s one of a number of powers that end up getting processed as two smaller attacks rather than one big one, in this case, the base damage, and then the extra damage per red tile. The Devs are aware, but apparently it’s a tricky bug that interacts with other things in ways that make it hard to fix.