Why can’t Roon count my tracks?

[Suedkiez (Just a fellow user like you)]

Probably this issue.

Build 1392+: Various Artists Compilations Intermittently Splitting into Duplicate Albums (by track) in Roon, ARC [Roon Investigating]

Known issue. Some albums get visually duplicated. (They exist only once, but are shown more than once. Don’t delete the visual duplicates as this will delete the single real object). The current incarnation of the problem is being discussed in this old thread, starting with this post. (The thread is old and contains other, similar but different issues further up in the thread)