Hardware: Raspberry Pi 3
OS: LibreElec 8.0.1
I tried this with fresh LE 8.0.1 installation on Rpi3, scanned external HDD folders with music files to Kodi library. Created a smartplaylist with criteria 'rating:3' & 'greater than', 'limit to 10', 'order:random', just like I used to do on 7.0.3 LibreElec with success. Opened the newly created smartplaylist, but the playlist returns empty, against all odds and always. I tried similar previously with an updated 8.0.1 over 7.0.3 with the same results, nothing on music smartplaylists, not a single song, whether it was an old list from 7.0.3 installation that worked before, or a newly created under 8.0.1. Everything else in the music library looks ok, like it did in 7.0.3, manual .m3u's, automated top100 and party playlists work without problems, it's just the smartplaylists, which for me at least are the most important of all to listen fairly large music library without too much repetition of the same songs, artists or albums. Can't live without smartplaylists, they have been my lifeline since starting to listen music from digital audio files.
Simply put, music smartplaylists haven't shown a sign of working under 8.0.1, like they very well did under 7.0.3.
Attached is the most recent log-files zip (without Network part, because it seems to contain too much sensitive information of network location and shouldn't affect the music library diagnosis, since the music files are located under folders on an external USB HD).