Flatpak seems to be broken here

flatpak seems to be broken here.
Afaics flatpak got updated on 2nd of Dec.
I thought this was maybe a packaging bug withch chrome but edge update is broken, too:

...
F: Transaction: install/update flathub:runtime/io.github.zen_browser.zen.Locale/x86_64/stable[/de]
F: Checking installation ‘system’ for EOL unused refs and autoprunes
F: Checking installation ‘system’ by checking for dependent refs in ‘user’


 1.	   	com.google.Chrome	stable	u	flathub	< 122,1 MB
 2.	   	com.microsoft.Edge	stable	u	flathub	< 176,1 MB

Mit diesen Änderungen an der Systeminstallation fortfahren? [Y/n]: 
Aktualisiere 1/2 …
F: Calling system helper: GetRevokefsFd
F: Calling system helper: GetRevokefsFd
F: flatpak_dir_pull: Using commit 9f8d4f161c4d6f282035e4704bbe83afd48c35cb020817ca621a8fcdc822ce64 for pull of ref app/com.google.Chrome/x86_64/stable from remote flathub
Aktualisiere 1/2 …                        0%  0 Bytes/s
Aktualisiere 1/2 … █                      5%
F: Loading https://dl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-chrome-stable_131.0.6778.108-1_amd64.deb using curl
Aktualisiere 1/2 … █████▍                27%  23,3 MB/s
Aktualisiere 1/2 … █████████▌            48%  25,0 MB/s
Aktualisiere 1/2 … █████████████▌        68%  24,5 MB/s
Aktualisiere 1/2 … █████████████████▍    87%  24,4 MB/s  00:00
Aktualisiere 1/2 … ████████████████████ 100%  28,1 MB/s  00:00
F: Received 112377704 bytes
F: Calling system helper: Deploy
Error: Ungültige Prüfsumme für zusätzliche Daten
Aktualisiere 2/2 …
F: Calling system helper: GetRevokefsFd
F: Calling system helper: GetRevokefsFd
F: flatpak_dir_pull: Using commit b7fc3caea6bb8858fd290f9f22f1d60dc5cea9d740339487ab92ed4a4464e51a for pull of ref app/com.microsoft.Edge/x86_64/stable from remote flathub
Aktualisiere 2/2 …                        0%  0 Bytes/s
Aktualisiere 2/2 … █                      5%
F: Loading https://packages.microsoft.com/repos/edge/pool/main/m/microsoft-edge-stable/microsoft-edge-stable_131.0.2903.86-1_amd64.deb using curl
Aktualisiere 2/2 … ██                    10%  4,9 MB/s
Aktualisiere 2/2 … ████▊                 24%  14,8 MB/s
Aktualisiere 2/2 … ██████▊               34%  16,3 MB/s
Aktualisiere 2/2 … ██████████▍           52%  20,2 MB/s  00:03
Aktualisiere 2/2 … █████████████▌        68%  22,1 MB/s  00:02
Aktualisiere 2/2 … ███████████████▍      77%  21,4 MB/s  00:01
Aktualisiere 2/2 … ███████████████████   95%  23,0 MB/s  00:00
Aktualisiere 2/2 … ████████████████████ 100%  24,1 MB/s  00:00
F: Received 168919594 bytes
F: Calling system helper: Deploy
Error: Extra data missing in detached metadata
Aktualisierungen abgeschlossen.
Fehler: Es gab einen oder mehrere Fehler

Meanwhile I tried various options like
flatpak repair
and
flatpak --no-static-deltas update
to no avail.

Now it works w/o changing anything.
Was probably a problem at flathub,

Because in the end it seems all is good.