Updating of CasaOS to 0.4.15 and BigBearCasaOS Immich v1.123.0 resulted in not getting all my photos & albums

I recently updated Debian 12 to the latest stable release, followed by CasaOS 0.4.14 to 0.4.15 and Immich to 1.123.0. Everything seems good until the next day.
I could not start Immich. After I got that resolved by reinstalling Immich, initially, all my photos were not there. When I re-login to the Immich client on my iPhone, it started populating my server’s photos. However, now my server (the app running on CasaOS) does not show all my photos nor any of my albums. I also notice that my / directory on Debian is close to 90% used, which was not the case prior to the upgrades. i suspect that with the latest installation of Immich on CasaOS, it has put my photos onto my root directory (/).
My setup is Debian with a / (sda5) and a /home (sda7) directory, both with about 50GB capacity. I have 2x7 TB (usbd1 and usbd2) external drives connected via USB to my server.
Any ideas what is wrong, how I can further trouble shoot and fix this issue short of re-installing CasaOS and Immich?