But I have about 8,000 FLAC files in that music directory ( with a few subdirectories ) those 200 belong to. All have been there untouched since copying the directory at once when getting this one device where I checked, and accessed them only by mpv from terminal. Why those specific 200 ? And why no media files from anywhere else ? Or any other files, for that matter. At any rate, it is not tracking any actual recent files.I have no idea, and never really use bookmarks. However, the first place I would look is in the media db database. It basically stores a log of every file on your device. Each file is flagged with date_added and a date_modified. Its just a stab in the dark, but a guess as good as any.
Edit : For the record, none of these default bookmarks seem to work. "All files" shows about 400 files. There are tens of thousands. "Video" shows zero files -- there are plenty. I'm guessing this is using Android's entirely broken mediastore.
Edit 2 : Yep. Entirely broken. Did a bunch of file operations with MiX, creating, copying, moving. The same fixed 200 FLAC files show on "Recents", no changes.
Uninstalled, ran SD Maid to clean remnants, and after re-install there were 2555 items in Recent.
I don't care enough to look in this further.
Edit 3 : YES, here we go; deleting /data/data/com.android.providers.media/databases/ resets "Recents" to show nothing. ( Apparently Android media store thinks I have 400 files in all, 200 of which are FLAC, and nothing else has changed in the last 6 months in this device. Right. )