What causes the DirectX GetDeviceRemovedReason error and freezes in raids?

[Brian58]

I just got the "DirectX function GetDeviceRemovedReason" error and my game completely froze. I was in the middle of a raid and everything just locked up, forcing a hard reboot. I'm not sure if this is a driver issue or something wrong with the game itself after the latest patch.

[AaronZH]

That error usually means the GPU driver hiccuped and Windows couldn't keep the device alive, so the game froze.

[StellaA]

I updated the GPU driver and set the power plan to high performance, also tried turning off v-sync to see if that helps; sometimes it lets things run for a bit after that.

[RileyL]

Sometimes I just lower texture quality and cap the framerate during raids to reduce GPU pressure; it buys you time, but it doesn't fix the root.

[Logan3]

Do you have any crash dumps or Windows event logs from the time it happened? I found those helped me tell if it was the patch or the driver.