Bridge is not "just a file browser." For each image file in a folder it generates up to three derivative files, depending on your settings: a preview image, a 100 percent preview image, and a thumbnail image. These are stored in a central cache folder that can take up considerable space, or can be stored "locally" (in the same folders as the images being browsed). Previous versions of Bridge limited the number of cache files to 500,000. Bridge 2021 (Version 11) limits the cache size to around 52 gigabytes. The upshot of all this is that for folders with thousands of large image files, it can take days for Bridge to generate a complete set of thumbnails and previews. To keep under the 52 GB (or 500,000-file) limit, Bridge will occasionally delete an entire folder of cache files, which can make for very slow folder browsing as well as cause a lot of disk churn and long save times in your storage array. ... View more

If your image files are tiffs, make sure the file extension is .tif and not .tiff. The only files that get recached (for me at least) have a .tiff extension. Or you can go to Edit > Camera Raw Preferences > File Handling and tick "Disable tiff support" and "Disable jpeg support." There will be one final (and much faster) round of recaching, and then Bridge should leave your thumbnails alone as far as Camera Raw is concerned. When tiff / jpg support is Enabled, the default Camera Raw ("Auto") settings are applied to every file in a folder to generate prettier-than-average thumbnails. When tiff support is disabled, you get the unadjusted thumbnails without all the recaching. ... View more

I don't have a 4k display but still get the error. Eizo 1920x1200 ... View more

Done that already. Five or six times. ... View more

I can't even open the preferences dialog. As soon as I click "Camera Raw Preferences" I get an error . ... View more