https://bugs.kde.org/show_bug.cgi?id=415261
--- Comment #7 from Tobias Deiminger <haxti...@posteo.de> --- The new backtrace again shows a seemingly impossible call stack (DjVuGenerator::generateDocumentInfo should not be reachable via TOC::notifySetup). This kind of error could happen if okular loads a binary incompatible version of the DjVu generator plugin okularGenerator_djvu.so. It seems at least possible, because - Debian distributes okular and DjVu plugin in two different packages okular and okular-extra-backends - bullseye is testing, something might have gone wrong during dist upgrade, leaving both packages out of sync - generator API core/generator.h occasionally changed in a binary incompatible way Can you check if both packages show same version? For me it's $ dpkg -s okular | grep '^Version:' Version: 4:17.12.2-2.2+b1 $ dpkg -s okular-extra-backends | grep '^Version:' Version: 4:17.12.2-2.2+b1 -- You are receiving this mail because: You are watching all bug changes.