0.4.0 Crashes when saving calibration

[ve9gj]

nanovna-saver v0.4.0 binary release OS Ubuntu 22.04 64bit

After doing a calibration in nanovna-saver I can apply it OK and then when attempting to save the calibration it will cause nanovna-saver to crash. This happens as a regular user. If I run as root it works OK.

error:

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(nanovna-saver:123904): Gtk-WARNING **: 12:33:33.004: Could not load a pixbuf from icon theme. This may indicate that pixbuf loaders or the mime database could not be found. ** Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /usr/share/icons/Yaru/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3) Bail out! Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /usr/share/icons/Yaru/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3) Aborted (core dumped)

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The file /usr/share/icons/Yaru/16x16/status/image-missing.png does exist and displays OK for a regular user.