That might be an interesting exercise, since there seem to be several things going on at once.
Looking back at specific cases, the case with Ry'Gorr Rearguards is clearly failure to switch attack modes from ranged to melee and the bar is just reporting what it sees. I cannot recall other cases where the bar stuck at full, but I can watch for new instances.
In cases where attack mode fails to end, the bar goes away but the weapon icon continues to flash over the target bar (even with no target selected) and run speed remains at combat levels. This happens enough to be annoying, but I have not yet found a pattern to it.
-= Therendil =-
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