Unstable since patch -- variety of errors

[Sarfa_Jons]

Since last night's patch, my game has been quite unstable. It started with this error:

A fatal DirectX error has occurred.(11000002)

I've never gotten it before and was able to play for about an hour today before getting it, but once I did, I am no longer able to play at all. The error occurs basically as soon as I login and the world loads.
I tried restarting my computer, closing out of all other programs, playing in a window instead of full screen, etc. but nothing helped. Eventually, I disabled "DirectX 11 Support" on the login settings and that helps a little, but about 1-2 hours of playing, the game still crashes each time. A couple of times this happened, I got just a blank error pop-up screen with a button, but nothing written on it. Clicking the button closed the program, just like with the DirectX error message.
I also had one time when the screen froze. The game was still active and I could click on things on screen, but the screen itself never changed. After staying like that for a few minutes, eventually I received the following error message:

An unexpected error has occurred. Exiting Final Fantasy XIV. 2021-08-16_11:17
igdumdim32.dll+17188
igdumdim32.dll+81197
igdumdim32.dll+1D817
igdumdim32.dll+3C7EC
igdumdim32.dll+3B72B
d3d9.dll+1583B4
d3d9.dll+159426
KERNEL32.DLL+1F989

With an "Ok" button that shut the program down when I clicked it.
I have screenshots if you need them.

I've been playing the game for a month now without any issues and all of this started happening today after the patch.
Any guidance is appreciated.
Thank you,
S

[Thukoolo]

Good morning! Thank you for posting in the Final Fantasy XIV Technical Support Forums. I do apologize for the delay in response to this issue.

We suggest to perform a clean boot by opening the task manager and selecting the 'Start up' Tab. Then, Disable everything. Additionally, can you submit a Final Fantasy XIV system report? Simply go to the 'Config' option on the Final Fantasy XIV launcher and to the right of 'System Information' click on 'Display'.

Thank you for visiting the Final Fantasy XIV Technical Support Forums.

[Thukoolo]

Thank you for posting in the Final Fantasy XIV Technical Support Forums.

Due to no response from the original poster, this thread will be moved to 'Closed Concerns.' If you are still having this particular problem, please create a new thread and we will assist you in any way we can.

Thank you for visiting the Final Fantasy XIV Technical Support Forums.