Inkscape 1.0.1 linux appimage. Using ubuntu 18.04 / mint 19 Inkscape opens and tools work until Save / save as an svg and it crashes.

Step-by-step instructions that dependably reproduce the issue.
run the appiame

Actual program behavior:
As expected until File -> Save

[code]
(org.inkscape.Inkscape:6130): GLib-GIO-ERROR **: 12:29:45.362: Settings schema 'org.gtk.Settings.FileChooser' does not contain a key named 'show-type-column'
Trace/breakpoint trap (core dumped)
[/code]

Expected program behavior;
Saves the file

Same appimage using ubuntu 20.04 / Mint20 Save works. 
A quick actual install  in Mint 19 using ppa:inkscape.dev/stable and that is working ok. 

Please report this as a bug. https://inkscape.org/forums/beyond/how-to-report-bugs-or-request-new-features/

I thought the above covered it as in https://inkscape.org/forums/beyond/how-to-report-bugs-or-request-new-features/  which says   (Start a new topic in Beyond the Basics board.) 

Not really a bug, just a pointer to whoever makes the appimage. I use the Inkscape 1.0 appimage in kububtu 18.04, with no problem. Guessing whoever creates the appimage has moved to a newer linux base release. I have see it happen before. If you could pass the message on. Many thanks.

edit: I realise it might not be possible. An indication on the download page might be in order.

Appologies, Must have made the same error on different setups yesterday. The appimage working ok today on my regular kubuntu 18.04 installation. I wonder what I was doing wrong yesterday? Might have been the old ~/.config/inkscape profile 

Thanks for your time.