After doing some more tests I found that it is not triggered by packages set on hold. It is triggered by packages added to the black list "Unattended-Upgrade::Package-Blacklist". The error still appears after removing the "hold" parameter from the package.
best regards Joerg -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
