[grosorg]

Upgraded Ubuntu from 24.04 LTS to 24.10 (20 years, anniversary edition).
Calibre - was removed with the upgrade.
Installed Calibre from terminal.

Starting Calibre via GUI - failed.
Starting from terminal shows issues:
$ calibre
Traceback (most recent call last):
File "/usr/bin/calibre", line 21, in <module>
sys.exit(calibre())
^^^^^^^^^
File "/usr/lib/calibre/calibre/gui_launch.py", line 74, in calibre
main(args)
File "/usr/lib/calibre/calibre/gui2/main.py", line 548, in main
run_main(app, opts, args, gui_debug, si, retry_communicate=True)
File "/usr/lib/calibre/calibre/gui2/main.py", line 560, in run_main
return run_gui(opts, args, app, gui_debug=gui_debug)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/calibre/calibre/gui2/main.py", line 398, in run_gui
run_gui_(opts, args, app, gui_debug)
File "/usr/lib/calibre/calibre/gui2/main.py", line 403, in run_gui_
app.load_builtin_fonts(scan_for_fonts=True)
File "/usr/lib/calibre/calibre/gui2/__init__.py", line 1356, in load_builtin_fonts
load_builtin_fonts()
File "/usr/lib/calibre/calibre/gui2/__init__.py", line 1106, in load_builtin_fonts
with open(ff, 'rb') as s:
^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/usr/share/calibre/fonts/liberation/LiberationSerif-BoldItalic.ttf'


sudo apt install fonts-liberation
fonts-liberation is already the newest version (1:2.1.5-3).

:/usr/share/fonts/truetype/liberation$ ls
LiberationSansNarrow-BoldItalic.ttf LiberationSansNarrow-Italic.ttf
LiberationSansNarrow-Bold.ttf LiberationSansNarrow-Regular.ttf

In Calibre folder there are more fonts than in the latest version:

$ ls -l /usr/share/calibre/fonts/liberation/
total 40
lrwxrwxrwx 1 root root 64 Aug 22 13:25 LiberationMono-BoldItalic.ttf -> ../../../fonts/truetype/liberation/LiberationMono-BoldItalic.ttf
lrwxrwxrwx 1 root root 58 Aug 22 13:25 LiberationMono-Bold.ttf -> ../../../fonts/truetype/liberation/LiberationMono-Bold.ttf
lrwxrwxrwx 1 root root 60 Aug 22 13:25 LiberationMono-Italic.ttf -> ../../../fonts/truetype/liberation/LiberationMono-Italic.ttf
lrwxrwxrwx 1 root root 61 Aug 22 13:25 LiberationMono-Regular.ttf -> ../../../fonts/truetype/liberation/LiberationMono-Regular.ttf
lrwxrwxrwx 1 root root 64 Aug 22 13:25 LiberationSans-BoldItalic.ttf -> ../../../fonts/truetype/liberation/LiberationSans-BoldItalic.ttf
lrwxrwxrwx 1 root root 58 Aug 22 13:25 LiberationSans-Bold.ttf -> ../../../fonts/truetype/liberation/LiberationSans-Bold.ttf
lrwxrwxrwx 1 root root 60 Aug 22 13:25 LiberationSans-Italic.ttf -> ../../../fonts/truetype/liberation/LiberationSans-Italic.ttf
lrwxrwxrwx 1 root root 61 Aug 22 13:25 LiberationSans-Regular.ttf -> ../../../fonts/truetype/liberation/LiberationSans-Regular.ttf
lrwxrwxrwx 1 root root 65 Aug 22 13:25 LiberationSerif-BoldItalic.ttf -> ../../../fonts/truetype/liberation/LiberationSerif-BoldItalic.ttf
lrwxrwxrwx 1 root root 59 Aug 22 13:25 LiberationSerif-Bold.ttf -> ../../../fonts/truetype/liberation/LiberationSerif-Bold.ttf
lrwxrwxrwx 1 root root 61 Aug 22 13:25 LiberationSerif-Italic.ttf -> ../../../fonts/truetype/liberation/LiberationSerif-Italic.ttf
lrwxrwxrwx 1 root root 62 Aug 22 13:25 LiberationSerif-Regular.ttf -> ../../../fonts/truetype/liberation/LiberationSerif-Regular.ttf

As shown above, in the destination there are only 4 files / fonts.
In /calibre/fonts/liberation/ - there are more links (marked "->").

Any (easy) steps to fix it?

P.S. Made few extra steps. Yet no success. Steps included:
Reinstalled python3
sudo fc-cache -f -v
Calibre reinstallation