04-13-2020, 10:12 AM
I can not reproduce that, but there are these cases:
https://gitlab.gnome.org/GNOME/gimp/issues/4382 monitor profile effect
https://gitlab.gnome.org/GNOME/gimp/issues/2401 oldish with a recent addition, color picker picks invisible layer color.
You could post a screenshot of the whole interface, layers / tools etc or an example xcf image - might give a clue.
https://gitlab.gnome.org/GNOME/gimp/issues/4382 monitor profile effect
https://gitlab.gnome.org/GNOME/gimp/issues/2401 oldish with a recent addition, color picker picks invisible layer color.
You could post a screenshot of the whole interface, layers / tools etc or an example xcf image - might give a clue.