Nexcloud AIO: Log filled with Imaginary errors

I have been running nextcloud AIO for some time now.
At this moment I use:
Nextcloud version: 25.0.4
Nextcloud AIO Version: 4.5.0

Lately I noticed that Photos app is a bit slow updating and I found that when I open the Photo app, I immediately get the following error:

Imaginary preview generation failed: cURL error 28: Operation timed out after 30001 milliseconds with 0 bytes received (see for http://nextcloud-aio-imaginary:9000/pipeline?......

Containers appear to be running without an issue:

CONTAINER ID   NAMES                           CREATED         STATUS                   COMMAND
293ba4e50107   nextcloud-aio-apache            6 minutes ago   Up 6 minutes (healthy)   " /usr/bin/s…"
44d72b0dc8ec   nextcloud-aio-nextcloud         6 minutes ago   Up 6 minutes (healthy)   "/ /usr/bin/…"
a8271055c026   nextcloud-aio-imaginary         7 minutes ago   Up 4 minutes (healthy)   "/usr/local/bin/imag…"
19d32e712fda   nextcloud-aio-redis             7 minutes ago   Up 7 minutes (healthy)   ""
e0ed2d41e1cc   nextcloud-aio-database          7 minutes ago   Up 7 minutes (healthy)   ""
c7e4543bd0de   nextcloud-aio-talk              7 minutes ago   Up 7 minutes (healthy)   " /usr/bin/s…"
d931ad7c0089   nextcloud-aio-collabora         7 minutes ago   Up 7 minutes (healthy)   "/start-collabora-on…"
2959bcdd4ecf   nextcloud-aio-mastercontainer   45 hours ago    Up 45 hours (healthy)    " /usr/bin/s…"

I have no clue as how to debug this, how to check the Imaginary container etc.

Hi, I suppose this is because the generation of Heic previews currently do not seem to work. Also see Imaginary preview generation is not working as expected for folders containing HEIC images. · Issue #35643 · nextcloud/server · GitHub