I posted about six hours ago, and I have a few observations and updates. These things automatically cause the client to crash: using a weapon with footstep effects or heavy swing effects, using farming tools with animation effects, mounting or dismounting, engaging in combat of any type, and heavy user traffic areas. These things usually cause the client to crash, but not always: Mesmer portals, dodge skills, crafting, regular farming skills, viewing another character on screen with any of the above (mounting, farming tools, weapon animations, others in combat, etc...), large npc presence, using waypoints. As you could probably see, that doesn't leave a lot of room for anything, and I have crashed 5 seconds into the game at the earliest and 5 minutes at the latest. Please work to fix this quickly, I cannot do anything in-game in the meantime.