Some things that worked fine dont, overall I think it's better now though.
For a long time in lost vale we killed the ogre and gnoblar boss by having a healer stand on the torch.
You would get stuck on everything, melee abilities would never work even when you were on top of someone, it was almost impossible to get a non ranged morale to actually go off and a lot of other things.
Now the only Morales that seem to have a problem are M1 knock backs. Lots of times those will go on CD without actually firing.
So there are still bugs, just not as many. I would answer your other questions, but others have already done a pretty good job of it.