App Store, Catalina and FCPX

Thanks everyone. Quick update. The case has now been handed on to a senior Technical manager within Apple. All my iOS devices flushed my Music, playlists, Artists, genius suggestions from the last decade last week; as well as no longer linking both free and purchased iOS and MacOS Applications. The account is very, very unwell. It appears that there is a failure to communicate (thank you Cool hand Luke) from any OS (this has all been testing across 3 MacOS and Windows10 on a variety of network protocols) with the backend of Apple's servers. I might be a vanguard for this particular issue so here's hoping that all the technical head-scratching leads to a solution before the problem creeps any further. Oh and anything I re-download (music or App) will 'unload' within 24 hours... I'll come back to update everyone once it's resolved.