I do not get this behavior on Debian Bullseye/11 On my debian, after the file is deleted on disk the background goes black on any subsequent change to Wallpaper mode, and `pcmanfm-qt` doesn't appear anywhere near the top of `htop` (ie. no 100% cpu thread)
guiverc@dc780-deb:~/wallpapers$ apt-cache policy pcmanfm-qt pcmanfm-qt: Installed: 0.14.2~166-g74a6f4d-1 Candidate: 0.14.2~166-g74a6f4d-1 Version table: *** 0.14.2~166-g74a6f4d-1 500 500 https://lxqt.debian.net/debian experimental-snapshots/main amd64 Packages 100 /var/lib/dpkg/status 0.14.1-3+b1 500 500 http://ftp.iinet.net.au/debian/debian testing/main amd64 Packages however this maybe a later package than I tested on Lubuntu; the command `pcmanfm-qt --version` both report the same version guiverc@dc780-deb:~/wallpapers$ pcmanfm-qt --version pcmanfm-qt 0.14.1 // identical version reported on Lubuntu 20.10 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878336 Title: the pcmanfm-qt crashes on an inexistant image background To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-default-settings/+bug/1878336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs