Dear Maintainer, looking at the backtrace from message 13 and at the changes done by upstream, following commit sounds related: https://github.com/OpenPrinting/system-config-printer/commit/b9289dfe105bdb502f183f0afe7a115ecae5f2af#diff-d3f2f90b6e176486d4b8dfe3222577f7 Kind regards, Bernhard