Bug report: Roon looses "recently added items"

Roon Optimized Core Kit @ NUC10i7FNH with 16 GB RAM (2x Crucial RAM CT8G4SFRA266 8GB DDR4 2666 MHz CL19 ), Samsung MZ-V7S1T0BW 970 EVO Plus 1 TB NVMe M.2 for Roon´s database and SSD 4TB 530/560 870 EVO for music files
Operating System: Version 1.0 (build 227) stable
Roon Server Software: Version 1.8 (build 790) stable
German UI

I switched over to Roon Optimized Core Kit. The switch over functioned perfect based on a backup from my earlier Roon installation. However, now a note an issue, namely that all added QOBUZ/TIDAL music added since the switch is not shown anymore under “ADDED” of “LAST ACTIVITY” of Roon´s “OVERVIEW” page. This music appears to be still include in the library, and some music is still shown unter “PLAYED” of “LAST ACTIVITY” of Roon´s “OVERVIEW” page.

I do not know whether is a general Roon issue/bug or a ROCK issue/bug.

Closed due to duplicate post. Other post is in support.