hendrik on 29 May, 2021 08:12 PM
what you are seeing has nothing to do with BPM estimation. Most likely you have checked the "Import tags from Last.FM"-box and beaTunes was unable to find any tags on Last.FM for some of your tracks, potentially, because nobody has tagged those tracks.
"import tags" was not checked but thanks anyway.
It was suggested elsewhere, that I should reload iTunes from the Apple site and not from Microsoft. Apparently there is a .com file? which doesn't always load from the Microsoft version.
Tried it and then ran Beatunes "analyse all songs" again and I now have the BPM for 95% of the songs in my library.