Deleted folder/album still present

[ICLlP]

These things are populated by the tracks' tags, so, if you happen to have even a single track with its title tag as "The Best Of caravan" with lowercase C, then MPD will treat that as a different album.
In my specific case (I use whole-disc FLAC + CUE) the title and artist tags in the FLAC file MUST BE CONSISTENT with the same in the CUE file, otherwise I end up with a double album in the library.

Just my 2c

I've checked; all tracks are consistent.