Bug#942206: Unable to install libreoffice-{avmedia-backend-vlc, core, kde, ogltrans, pdfimport} packages in buster-backports

[s3v <c0llapsed@yahoo.it>]

Package: src:libreoffice
Severity: normal

Dear maintainer,

 some packages are currently uninstallable in buster-backports:

# apt -s -t buster-backports install libreoffice*
[...]
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libreoffice-avmedia-backend-vlc : Depends: libreoffice-core (=
1:6.1.5-3+deb10u4) but 1:6.3.2-1~bpo10+1 is to be installed
 libreoffice-core : Conflicts: libreoffice-avmedia-backend-vlc but
1:6.1.5-3+deb10u4 is to be installed
 libreoffice-kde : Depends: libreoffice-common (= 1:6.1.5-3+deb10u4) but
1:6.3.2-1~bpo10+1 is to be installed
 libreoffice-ogltrans : Depends: libreoffice-common (= 1:6.1.5-3+deb10u4) but
1:6.3.2-1~bpo10+1 is to be installed
 libreoffice-pdfimport : Depends: libreoffice-common (= 1:6.1.5-3+deb10u4) but
1:6.3.2-1~bpo10+1 is to be installed
E: Unable to correct problems, you have held broken packages.

Kind regards.

-- System Information:
Debian Release: 10.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)