Audivana grouped files for https://www.highresaudio.com/en/album/view/kbr9oq/nidarosdomens-jentekor-and-trondheimsolistene-lux and https://www.highresaudio.com/en/album/view/re6xwh/emilia-amper-lux into a single album. Album title is the only tag that they have in common. Year, artist, album artist, etc are different.
One of the albums did not have a disk number tag. When I added a disk number tag so that both sets of files were disk 01, Audivana separated them.
It is a single-example fix and might only work for single-disk album, but I though it was worth mentioning since it did not require adding incorrect info to the tags. It is interesting that Audivana is more aggressive in aggregating albums, while the logic in LMS is more strict about requiring matching tag information. If a disk-wide tag other than disc number tag differs, LMS will tend to see the discs as separate albums, which can be a pain too.