[KevinH]

DBus is not just associated with Flatpak. It is used to read desktop theme changes as well.

Arch is probably using Qt 6.10.x or later.

I recommend trying our AppImage for Linux (from our Releases page) and not the distribution based build. Does it exhibit the same errors?

If not, then the problem is most likely due to Qt issues.

You could try to enable core dumps and debug the post crash coredump with gdb to generate a backtrace, or even start Sigil, then attach to it with gdb and generate a backtrace that way if Sigil does not crash immediately.

Hopefully a gdb backtrace will provide some hints as to the cause. I regularly run Sigil 2.7.0 on Manjaro with no crashes or issues.

Also you might have somehow corrupted your ini settings files? Try creating a new user on your Linux box and logging in as them and and running Sigil from there to see if it crashes immediately (a new user would start Sigil with clean default settings ini files).

One other question ... Has Sigil 2.7.0 always crashed on startup on your Arch Linux system, or is this just started recently?

Please let us know what you find out.