After updating to Premiere Pro 25.6.2 if I open and edit any project, when I attemt to save, I receive the error "You do not have write access to the directory where the project is located". If I choose to "save as" the project appears to save but my premere desktop then turns black with no visable panels.
I have confirmed that I do not have an access issue. As the only user/administrator on this PC I have FULL CONTROL of all drives. All other Adobe products I use (After Effects, Photoshop, Audition, Media Encoder, LRC) can, Open, edit, save, & write to the same directory.
If I uninstall Premiere and install version 25.5, Premiere works as expected and I do not receive any write access error messages.
I also attempted to uninstall and then install 25.6.1 and again received the "You do not have write access to the directory where the project is located" if I attempt to edit and then save a project. I again uninstalled and re-installed 25.5 and the issue goes away.
This issue is clearly introduced in version 25.6.1 and is also present in 25.6.2
I am running the latest version of Windows 11 Pro (Version 25H2 - OS build 26200.7171)

I am running on the following hardware:
MSI Z390 GAMING PRO CARBON AC Motherboard
Processor Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz (3.60 GHz)
Installed RAM 64.0 GB
System type 64-bit operating system, x64-based processor
Display Adapter: NVIDIA Quadro RTX 4000 (8GB)