[2022] [Bug / Glitch] Sledgehammer on Buddy/Lucy glitches them out

This issue first started occurring when the Sledgehammer talent was introduced into the game.

Steps to reproduce:

• Play Dark Hours raid (normal)
• On the 3rd boss (Buddy/Lucy) use a weapon with either Sledgehammer or Perfect Sledgehammer talent
• Throw a grenade onto either Buddy or Lucy

Expected results: Sledgehammer debuffs the NPC so they take on more damage

Actual results: Buddy/Lucy won't die

Temporary solution: Everyone wipes, restarts the fight, and avoids the use of Sledgehammer