Since Murkmire released on Monday, I've been having a terrible time using my Resto and Flame staff. When I try to do a normal light attack with the Flame staff, I would get stuck in the heavy attack animation. I am unable to cancel, use abilities, weapon swap, or roll dodge. Yesterday, while I was doing the daily pledge for vFang Lair, I was repeatedly getting stuck on both the Resto and Flame staff animations. The only way I was able to get unstuck was wait until the last enemy had died.
During the last fight with Thurvokun, I went to revive one of my teammates and after they got back up, I was still stuck on the revive animation and couldn't move. I ended up getting killed by the poison pool because I couldn't dodge away. My other teammates who were using Lightening staves also said they were getting stuck during animations and was unable to weapon swap. I even saw my teammate get stuck on the revive animation after he had revived me from being killed.
My ping averages around 90-110 and was absolutely normal during the above issues. Prior to Monday, I had no problems with using light attacks on my Flame staff or have ever gotten stuck during revive or heavy attack animations. I do not know what was causing this but it was frustrating as it was affecting half the group and each time causing us to die. The fight took way longer than it normally did as we were all taking turns dying from being stuck during our attack animations and revive animations.
Also, another strange thing happened during the same vFang Lair dungeon. The ghost that chains players during Ulfnor's boss fight usually spawns in the outer edge of the arena. Right before Ulfnor was killed by our team, the ghost had spawned right on top of one of the players in the center of the arena and that player was instantly downed as there was no time to kill the ghost before Ulfnor's attack. It was unusual that the ghost spawned in the center right next to Ulfnor right on top of the player.
This happened early afternoon yesterday [October 22nd] around 2:00pm EST on PC/NA server.