No cover images with calibre-server 9.x

[beedaddy]

Just updated my calibre-server instance. I noticed that there are no covers shown in the grid/list, but they are there when you click on one to see the book details.

journalctl shows this:

Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 163, in copy_func
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/utils/img.py", line 423, in scale_image
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/utils/img.py", line 129, in image_from_data
Jan 31 19:03:14 hornet calibre-server[4503]: calibre.utils.img.NotImage: Not a valid image (detected type: jpeg)
Jan 31 19:03:14 hornet calibre-server[4503]: Unhandled exception in state: State: _job_done Client: 127.0.0.1:58574 Request: GET /get/thumb/>
Jan 31 19:03:14 hornet calibre-server[4503]: Traceback (most recent call last):
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/loop.py", line 648, in tick
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/loop.py", line 363, in _job_done
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/http_response.py", line 495, in job_done
Jan 31 19:03:14 hornet calibre-server[4503]:   File "polyglot/builtins.py", line 61, in reraise
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/pool.py", line 33, in run
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/http_response.py", line 455, in run_request_handler
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/routes.py", line 316, in dispatch
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 381, in get
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 165, in cover
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 108, in create_file_copy
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 163, in copy_func
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/utils/img.py", line 423, in scale_image
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/utils/img.py", line 129, in image_from_data
Jan 31 19:03:14 hornet calibre-server[4503]: calibre.utils.img.NotImage: Not a valid image (detected type: jpeg)
Jan 31 19:03:14 hornet calibre-server[4503]: Unhandled exception in state: State: _job_done Client: 127.0.0.1:58582 Request: GET /get/thumb/>
Jan 31 19:03:14 hornet calibre-server[4503]: Traceback (most recent call last):
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/loop.py", line 648, in tick
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/loop.py", line 363, in _job_done
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/http_response.py", line 495, in job_done
Jan 31 19:03:14 hornet calibre-server[4503]:   File "polyglot/builtins.py", line 61, in reraise
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/pool.py", line 33, in run
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/http_response.py", line 455, in run_request_handler
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/routes.py", line 316, in dispatch
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 381, in get
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 165, in cover
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 108, in create_file_copy
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/srv/content.py", line 163, in copy_func
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/utils/img.py", line 423, in scale_image
Jan 31 19:03:14 hornet calibre-server[4503]:   File "calibre/utils/img.py", line 129, in image_from_data
Jan 31 19:03:14 hornet calibre-server[4503]: calibre.utils.img.NotImage: Not a valid image (detected type: jpeg)

Can anyone confirm this or is it me doing something wrong? I just updated with

sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

But it's on a Raspberry Pi with Debian 13, if that matters.

[kovidgoyal]

It's an issue with the jpeg image loader in Qt 6.10 and your machine. It's likely missing something it requires. Try running the server in a terminal/ssh and see if there are any error messages from Qt printed out.