Hi. I detect this error since 1st time you ship this cute application on FlatHub.

To reproduce it:

1. launch ksnip,
2. close editor from it's "close" icon that is located on upper right corner of editor UI (being of the shap x),
3. then try the following:
   a- right click system try icon of ksnip, then click "show editor" from right click menu, it will never bring editor !
   b- take a screen-shot using hot keys. The screenshot tacked but editor never shown automatically. Try now right click system try icon of ksnip, then click "show editor" from right click menu, it will never bring editor !

The only way to restore it, is to exit ksnip application then re-launching it again !

I test this error after updating to last version of flatpak package that you just few hrs pushed.

I'm on Fedora Linux 32 X64 bit Cinnamon edition.