The only work around is to use your File Manager to copy still images and videos to 2 different folders on your drive then use LR to only import the still images and never select the folder with the videos in them.
When the import dialog opens with thumbnails hold down the Alt key (Option key on Mac) and the buttons “Check All” and “Uncheck All” will change to “Check Videos” and “Uncheck Videos”
Adobe Engineers are investigating the bloating of caches. See this link:
I found today that I was having a problem with this too. On selecting Bridge to display a load of video files, my C drive filled up, the culprit being this issue I believe. Each video file I selected resulted in a large file being deposited in the cache
I've stopped the LR cache being filled up (unnecessarily as far as I'm concerned) by changing the write permissions to 'Deny' (Using Win 10) for all users, this stops the cache being written to, and as far as I can see, doesn't affect anything I'm interested in
Hope this is of help to others
If you are in Bridge that has nothing to do with Lightroom.
There is a Cache setting in Bridge and you can change the size and location where Bridge stores it cache folder.
No, you've misunderstood me. The folder being filled (even though it was playback of a video, accessed through Bridge) was C:\Users\username\AppData\Local\Adobe\Lightroom\Caches\Video\Media Cache Files, which is the LR cache. Each time I played a new video file, it was cached to this folder, and I've now write protected it to stop it doing so
My Bridge cache is pointed to a separate hard disk entirely as I've already moved that to avoid similar issues in the past