Sorry, I'm not good at reporting, but there is an issue reported on the Flathub (https://github.com/flathub/org.kde.okular/issues/456) concerning the PCRE version. The related source code repository on GitHub (https://github.com/PCRE2Project/pcre1) appears to be archived. Is there a plan to move to PCRE version 2? Thanks.
A possibly relevant merge request was started @ https://invent.kde.org/graphics/okular/-/merge_requests/1297
Git commit b93e4804166183cc22a088b88dcf51d596de13b9 by Albert Astals Cid. Committed on 04/01/2026 at 23:15. Pushed by aacid into branch 'master'. flatpak: Remove pcre we don't need it It was probably there from the times we compiled kjs M +0 -13 .flatpak-manifest.json https://invent.kde.org/graphics/okular/-/commit/b93e4804166183cc22a088b88dcf51d596de13b9