Cut and Paste looses formatting when copying from one table to another table

Hello,

I run libreoffice from backports on a bullseye system:

rd@h370:~$ apt-cache policy libreoffice
libreoffice:
  Installiert:           4:7.4.5-1~bpo11+1
  Installationskandidat: 4:7.4.5-1~bpo11+1
  Versionstabelle:
     4:7.5.1~rc2-1 1
          1 http://deb.debian.org/debian experimental/main amd64 Packages
     4:7.4.5-2 105
        100 http://deb.debian.org/debian sid/main amd64 Packages
        105 http://deb.debian.org/debian bookworm/main amd64 Packages
 *** 4:7.4.5-1~bpo11+1 110
        110 http://ftp.de.debian.org/debian bullseye-backports/main amd64 
Packages
        100 /var/lib/dpkg/status
     1:7.0.4-4+deb11u4 500
        500 http://ftp-stud.hs-esslingen.de/debian bullseye/main amd64 
Packages
        500 http://security.debian.org bullseye-security/main amd64 Packages
rd@h370:~$

I run the KDE Plasma desktop.

If I try to copy and past from one table to another, I get just by switching 
to the new table an empty clipboard.

If I select the previous entry in the clipboard and try to paste it, librecalc 
tells me that is an unknown source and all formatting is lost.

As an example, see

http://bokomoko.de/~rd/Debian/libreoffice-cap-issue.ods

The issue does not occur on a Manjaro Stable system with Libreoffice 7.5.0

The systems don't share the home directory though. Is the are a way to make 
libreoffice ignoring all user settings?

Any hint what could be wrong is welcome.

Thanks
Rainer