GPU error at start of sim loading

[TacomaSailor 191]

On Saturday MSFS was working well.  I had flown five or six missions over three sessions with no problems.   I then did a normal shutdown with the "Quit to Desktop" from the Main Menu. During the MSFS shutdown the GPU error message poped up and MSFS took a dump:
Your graphics device has encountered a problem and the application will exit
Error:DXGI_ERROR_DEVICE_HUNG (0x8887a0006)

Every time I start MSFS now, when the first Sim window appears with a black background, I get the GPU error message and the following system log message:

Log Name:      System
Source:        nvlddmkm

The description for Event ID 0 from source nvlddmkm cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

The following information was included with the event: 

\Device\Video11
Error occurred on GPUID: 100

The message resource is present but the message was not found in the message table

Win 11 / RTX 3060 Ti

Deleted the community folder to ensure I had no addons
tried the current and two previous NVidia drivers.
tried three different DLSS versions
downloaded the DLSS 3.6 and 3.7 and reinstalled them.
happens in DX11 and DX 12
ran a chkdsk on every drive and SFC /scannow to verify all the drives are happy.
ran GPU stress tests with three different apps with no problems.

The sim loads and runs fine when I use an older NVidia GTX 1050 OC GPU.
deleted the usercfg.opt and let the sim build a new one using the older GPU.

Nothing I do allows me to start the sim

What next?
 

Edited April 22 by TacomaSailor

[Fielder 3,696]

I wonder if you are in the beta or not?

I am enthusiastically in the beta. From time to time I get the same message above as you, and the sim crashes. But this happens rarely (about once every 10 hours of flight). And then when I reboot MSFS and all is well. By the way, if I boot up MSFS and then just let it sit in the taskbar and do nothing in MSFS, I will still get the error message sometimes after several hours has gone by.

EDIT: I never had the issue before using the beta. BUT the beta has been here and used by me since February. That's a long time ago. Therefore the problem may be with new Nvidia drivers, new dlss .dll files, or other changes that Asobo has made to MSFS  which effect both beta and non beta installations.

Edited April 22 by Fielder

[cianpars 1,171]

I'm not in the beta and this has happened a few times as well as sim connect errors.

Hard to pinpoint the reason, but both seem to happen more when I have a bloated community folder.

I also noticed the graphics error happened when I updated one of the dlss files to 3.6 and it seems ok since reverting back to 3.5.

I also use the auto FPS and framerate generation mods which might not be helping matters.