(08-02-2021, 11:02 AM)Fifi Wrote: When double clicking my selection, the selection disapears- does anyone know what I'm doing wrong? I have done a ad alpha channel on my image.
Best guess from the description. Are you using MacOS and the BigSur update ?
It is a bug: https://gitlab.gnome.org/GNOME/gimp/-/issues/5952
The selection is still there. You can see it if you toggle quick mask and as far as I know it still works as a selection.