[Gimp-user] Apply filter does not have the same effect as preview shows

[rich404 <forums gimpusers com>]

> I am trying to use the color rotate filter on version 2.10.0
> Setting up the parameters of the effect in the tool, the preview
> applies exactly what I want to the image.
> And then when I click 'OK' something entirely different happens and
> the image does not look like the preview.

Best guess since you do give all details.

Your image is in indexed mode. Change it to RGB  Image -> Mode -> RGB

Stupid? Only in the sense it does not advise the user.

-- 
rich404 (via www.gimpusers.com/forums)