I'm currently in a group about to enter Sanctum Ophidia. It's been 1 hour since the group started, but we're trying to get the whole party to walk through the door at the same time rather than port in to minimise the chance of people crashing inside. Invariably there's someone being kicked to the login screen, unable to log back in unless they're kicked from the group, etc.
When before we started the trials group, I was kicked to the login screen three times today after logging in a character in Orsinium and spending a minute or two unable to use skills, swap bars or use doors.
From what I've been hearing from guildies, these issues are prevalent and aren't getting any better.
I've had similar issues in the past, so I don't think this week's patch is wholly responsible, but it certainly feels much worse now.