Constant Client Crashing (Unstressed)

[Gibz111]

While in the League 4 Realm I've been having progressively more constant crashing of the client.
It's happened a couple dozen times in the last couple days of attempts, it got one of my HC characters killed, and there is no one thing I'm doing that triggers it. It's happened when looting, opening a UI element, casting a spell, just simply while holding [w], etc. I have repaired the client and removed addons in hopes for a fix, but it's only gotten worse.
Basically I can't risk leaving town to play the game because I want to play HC trials. I'm giving up on the client entirely until there's a fix to this. It's broken.