Mission 2 Boss Fight Error

[Blackest Night Batman]

So, while fighting The Presence, I get to the point where he re-awakens Cap just fine, but after taking Cap down again I don't get the opportunity to do damage to Presence again. His health bar stays locked at the halfway point, and he just continuously flies back and forth in the back of the room. Are there any fixes, is there something I'm supposed to do that I'm missing, or am I SOL?

[Blackest Night Batman]

In case anybody is wondering, I pinpointed the exact error. Cap's health can be fully depleted without physically hitting him, unlike the first time you fight him. However, when fighting him the second time, you still have to get grabbed by him and swap characters. If you completely drain his health bar, that event isn't triggered, so his health gets locked at zero, he collapses, and you can't damage him again. The game doesn't mark him as defeated though, so you just end up in an infinite loop. Hope this helps anybody else who gets stuck in my situation.