I'm finding that Bridge keeps mysteriously resetting my thumbnail cache and requiring new thumbnail generation evey few days. The settings don't automatically reset, just the thumbnails. I've tried doing a complete settings reset when launching Bridge as well as a full re-installing without keeping previous settings.
I'm navigating and doing thumbnail generation across multiple drives, most commonly a NAS, and have a local 1Tb SSD acting as a cache. There doesn't seem to be any other issues, just that the thumbnails vanish.
Is this a known problem or happening to anyone else?
The problem is your NAS drive. Bridge was never designed for use on a NAS drive. Please try to limit your access to only the SSD and see if the problem goes away. If it does (and I think it will), that shows that you'll need to limit your Bridge work to only local drives.
There are network solutions out there but unfortunately, they are often expensive. I have no suggestions either way for you.