I played last night along with my wife in a group of just the two of us. I crashed every few minutes. My wife has never crashed once. Went to enter the Arena district for the first time and the moment I spawned after climbing the ladder, I crashed as soon as I saw the first frame. Then I could not play, crashing every time I spawned.

Feeling helpless I remembered the group bugs in Cyrodiil in the past, it was all I could do, I had my wife leave the group and I was able to spawn. We regrouped and went to the Arena and every time I tried to enter the gate I would crash. Had my wife leave the group, I spawned already inside the Arena. Been playing for awhile now without being in a group and so far only 2 crashes, that's down 90% from what it was while grouped. She still has never crashed. Doesn't seem to matter whether I am the lead or she is.