Issues

• Two instances both launch when started in separate PID namespaces (Flatpak, containers sharing a config dir): the stored PID means nothing across namespaces

  bug
  ktsu-dev/SingleAppInstance#195 · Filter by author matt-edmondson opened on Oct 5, 2026
  1

• On Linux, a second instance launches after the app's executable is updated on disk while it runs: MainModule path gains " (deleted)" and no longer matches

  bug
  ktsu-dev/SingleAppInstance#191 · Filter by author matt-edmondson opened on Sep 29, 2026
  1

• A second instance launches while the first is running if the wall clock was stepped by more than 1 s (NTP correction, resume) after the first started

  bug
  ktsu-dev/SingleAppInstance#188 · Filter by author matt-edmondson opened on Sep 29, 2026
  1

• App never starts again once its PID file or folder is unreadable/read-only (e.g. after one run under sudo): access denied is reported as "another instance running"

  bug
  ktsu-dev/SingleAppInstance#187 · Filter by author matt-edmondson opened on Sep 29, 2026
  1