I have had a variation on this since Version 1.7 (build 521) came through. Not Freezing per se, but specifically with albums with no associated artwork and when using an Android tablet as the remote.
Core: ROCK, Version 1.0 (build 183) and ROON Version 1.7 (build 521) on NUC8i7BEH, 8GB ram, Samsung 970 EVO Plus M.2 SSD (250GB), Samsung 860 QVO SSD (1TB) as internal storage for the Library.
Ethernet cable from NUC to router (TP-LINK TD-VG5612).
Then wifi to ROON Remotes on an hp laptop (Windows 10), and a Samsung Galaxy TAB A (SM-T515 with Android version 9) both ROON Version 1.7 (build 521).
On the Tablet: All’s good until I select an album with no artwork (no graphic in the folder, plus nothing assigned by ROON) - but just showing ROON’s generic greyscale polygonic graphic in the place of any associated artwork.
Select one of these albums on the tablet and the app shuts down, sometimes immediately, sometimes a moment after showing “waiting for remote core”.
Hit the ‘III’ button on the tablet’s home screen and ROON is still there minimised as if it is still running. Select it again and the same shutdown/re-minimisation happens again. Close it and reopen - no change. Reboot tablet - no change. Re-install ROON Remote app - no change, and the tablet app is essentially unusable.
The only way to recover the app on the tablet is to remove the offending album from the watched library folder in the NUC by using the laptop over the network. Then re-start the tablet app and it loads showing the selected album as “not found”, at which point I’m up and running again.
ROON Remote on the laptop is unaffected by this thankfully, or I’d be stuffed.
And there’s more. Find a jpeg for the offending album - add it - and re-insert the album into the watched library folder on the NUC and it’s then selectable on the tablet and the app doesn’t crash.
Hope this is vaguely clear and that it’s of use.