All Qobuz albums not showing in Roon

Innuos Zenith Mk3

Switching on today and find all Qobuz albums missing in Roon. Started by resetting/unplugging to no avail. Trawled Roon settings and all looks good. Checked my Qobuz app, all albums present . Switched on Naim Qb, Qobuz albums playing fine via iPad. I don’t have a Qobuz backup, just my CD’s. Have I missed something obvious? I don’t fancy adding them (about 350) back manually! Thanks

Update: Well, after four hours of listening my Qobuz albums have miraculously appeared! The only thing I have done is sign into my Qobuz app on my iPhone, ready to go through it to re-add each album into Roon! Strange.