Gimp 2.99.17 (CMYK Student's non-destructive build) has gegl:color/gegl:color-overlay problem when editing non-destructively.
I built Gimp 2.99.17 from source. The special build with non-destructive editing. It works and I am amazed by non-destructive editing, but one problem exist. Any GEGL filter that uses gegl:color-overlay or gegl:color does not remember the color settings when I go to re-edit a filter. When I click on "layer effects" to edit non-destructively it reopens with all the settings but the color is back to whatever the filters default is.
In example I start a non-destructive GEGL Drop Shadow and change its default color from black to red, when I go to re-edit it it will go back to being black. This can be worked around by loading the most recent preset (to bring the red back) but I still this is a bug that needs to be fixed.
Off topic from the bug my plugins do work in this and it is really cool to see my text stylers non-destructive.