Lightroom 6 Crashes On Startup (Windows 10)

I'm running a newer Windows 10 machine and Lightroom 6.14 starting crashing on startup for me today. It will last 5 to 8 seconds before it goes down, no error message, the program just closes.

It has been about a week since I last used Lightroom on this computer (AMD Ryzen 7 processor, Nvidia 2080 graphics card). We have a second computer we upgraded hardware on three days ago, and I had to contact support to re-authorize that machine (not sure if it's relevant, but timing of the issue raises suspicion). This morning I launched Lightroom on the current machine without issue and I tried to import about 400 photos, and that's when Lightroom closed on me for the first time.Every time I relaunch since it shuts down within 5-8 seconds.

I've tried following recommendations on community - disabling the graphics driver, uninstalled and reinstalled a couple times, renamed the SLCache  folder, and pretty much everything else I could find.The only thing I haven't been able to do is launch the program and go to edit > preferences > performance and uncheck the box about using the graphics card because it crashes before I can hit Okay.

I has Adobe Support helping and connected to my computer for nearly an hour before they said all that was left was to try this forum. Anything insight would be appreciated. Thank you!

{Moved from Lightroom Cloud to Lightroom Classic Forum by Moderator}