Hi everyone,
I've been using Paint.net for a few years now and never run in to any problem, but whilst I was editing a picture the aforementioned tools stopped working. After searching, it seems that a few other people have had this problem over the years, but I couldn't find a solution.
The picture I was editing is a .pdn file, and the other selection tools (magic wand, move selected pixels) work fine. The unresponsive tools also work on other images as normal, just not this specific one.
Here's a screenshot of the picture that has this problem.
Any help would be appreciated, thanks!