I'm having a really annoying problem. When I fight the dragon in the sulfur hot springs area, absolutely nothing hurts it. I can wail on it for a solid ten to fifteen minutes, and it's health bar remains full. I do have Deadly Dragons installed, but I have it set barely higher than vanilla strength. Ten to fifteen minutes should be enough time for me to kill two dragons, let alone one, but not this one.
Also, this bug is only effecting this one dragon. All the other dragons I've encountered, whether radiantly spawning or pre-set, behave normally.
Basically, I need to fix this one dragon. Can anyone suggest something? Perhaps another mod, or maybe a console command that would "reset" this dragon back to the way it should be?