Account: Sweet Summer Child
Character: Mira Summers
This is the second time I've run into this issue, so I'm pretty sure it's a thing.
My client sometimes consistently crashes when entering the Moldmire from the Fort Mur transition. When this problem happens, I crash on login every time afterward, but I am able to log in to other characters on other accounts without any problem. The issue has only manifested with this character in that area. Besides this, I haven't had a client side crash in years. It just cropped up with this character.
Running the EfU Launcher fixed this problem.