Hundreds (thousands maybe) of nm-applet error messages in .xsession-errors

[Chris Green]

I have recently upgraded from xubuntu 19.04 to 19.10 on my laptop.

The .xsession-errors file is getting rather large very quickly, it has
grown to 8Mb in not much over 24 hours.  A large proportion of the
errors in .xsession-errors are from nm-applet:-

    (nm-applet:1573): Gtk-CRITICAL **: 20:15:43.847: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed
    (nm-applet:1573): Gtk-CRITICAL **: 20:15:43.847: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed
    (nm-applet:1573): Gtk-WARNING **: 20:15:43.858: Can't set a parent on widget which has a parent

The same three errors repeat, a lot!  There are also similar Gtk error
messages from other programs but nm-applet is by far the worst culprit.

I know these aren't that serious, the system still functions OK, but
at the very least they tend to mask more serious issues by making
.xsession-errors so large.

Is this a bug that should be reported and/or is there a work-around of
any sort?


-- 
Chris Green