I've been using Paint.NET for about 3 years now, it's been doing everything as it should, running fine, and I've been making a lot of images recently, I like to save a PNG and PDN copy of each image I make, just so I have the option to edit out any mistakes I inevitably make. Just recently, as of yesterday (22/10/18), the PDN image previews just gave up, normally I get a nice preview of both so that I can see what's what.
How it should look:
How it looks instead:
I save the PDN files as (2), and PNG as (1), and now suddenly there are errors in keeping the image icons there, this probably wouldn't normally be a problem, but it becomes quite confusing when you're trying to navigate to the correct image through the hundreds of Paint.NET icons.
I did see a post about this previously, but an admin just said they would patch it or something, but my program is fully up-to-date, and runs fine normally, I have installed a plugin pack that comes with a lot of effects and tools, it's run fine for the three-or-so years it's been installed, so I assume it's nothing to do with that. Is this problem common? Is there something I should be changing around for it to work?