Yesterday, 10:37 AM
(This post was last modified: Yesterday, 10:37 AM by foxycologist.)
Ah, you gave me the clue I needed!
Since posting, I had also noticed that edits made with the cloning tool showed the same speckling. So I checked the clone tool settings, and found that somehow I had switched it to mode Dissolve rather than mode Normal. Changed it back, and the Add Border tool gives me pure black again. Is that clone tool setting intended to affect other filters?
Anyway, thanks, you've solved my problem for me.
Since posting, I had also noticed that edits made with the cloning tool showed the same speckling. So I checked the clone tool settings, and found that somehow I had switched it to mode Dissolve rather than mode Normal. Changed it back, and the Add Border tool gives me pure black again. Is that clone tool setting intended to affect other filters?
Anyway, thanks, you've solved my problem for me.