In the attached file, with the attached shaded mode, run matchsrf and select the edge of the blue surface that’s against the gray surface. The preview of the match doesn’t show up correctly. I’m not concerned that the color goes away, but any locked transparent object in front of the preview area blanks out the preview. See video…matchsrf with locked objects hides preview 2.3dm (157.6 KB) ShadedG.ini (13.9 KB)
if you reset your shaded view to defaults does it still do that?
if you go from your custom shaded view to wireframe and back does it redraw correctly?
I can repro this here-