LR 11.4 Crashing anytime syncing or creating a preset.

I've been using lightroom classic since it started. I have a beast computer that I edit 8k RAW video files with, I edit 2-3 weddings a week in still photos, no issues.  I upgraded to Lightroom 11.4 last night... no issues today, everything was working fine. I exported about 500 raw files, it exported them in record time with the new GPU setting for export.  HOWEVER: After the export, anytime I try to sync settings in develop mode across multiple photos, OR copy settings, OR create a preset... the program hangs and freezes and won't do anything until I force close it through ctrl+alt+del.  I've tried uninstalling, rebooting, reinstalling, I've tried uninstalling, rebooting, reinstalling older versions, I've tried removing the GPU option.... same thing happens EVERY SINGLE TIME. I need a fix asap. Everything else on my computer with adobe works as normal.
System specs, Windows 10 - 64 Gigs RAM - 12 Gigs Video via Titan X Paschal - 4.2 Ghz CPU, tons of hard drive space.