Since the launch of stormblood I have been experiencing a very odd error. If I am in an overworld area, any movement during a cast will cause my game to lag out then disconnect with a 90002 error. I can still move, talk to other players, and see others moving on my screen. Any actions I take will do no damage or healing. If I am in an instanced dungeon or primal fight, this does not occur.

I can reliably repeat this error within 2-3 casts. If I don't play a caster, I can quest absolutely fine for hours on end without any disconnects. So far I have:

-updated graphics driver
-updated directx
-uninstalled/reinstalled

I have a second person on a different computer playing on the same connection. Her account has no problems, so I don't think it is a connection issue. Any ideas for what can cause this?