The crashing when trying to play GW, was this thread
We sent out two lots of compensation for, also was causes by matchmaking issues - which so far have been resolved.
It is purely a visual issue, so I think it may still be ongoing, but I am following up. it should be resolved, but I will be looking out for it as well.
The past Guild Wars that have been affected by this, were two different issues which have both been resolved. While I would like to be positive that we have resolved the issue fully, I will be keeping an eye out for all reports of it happening again.