I have been using gthumb happily for a while. It has
suddenly started to evoke the error message;

GDBus.Error:org.freedesktop.DBus.Error.NotSupported: Application does not handle command line arguments

This happens even when no argument is given on the command line.
Does anyone know why this has started to happen? (Since it did not happen
before it cannot be an error in the program itself surely...?)

Malcolm MacCallum