[Version 4.1.3]

I'm a regular paint.net user, and the version i am using is the paid version on the microsoft store paid version.

 

Around 2 days ago, i was minding my own business designing something and saved the file from a PDN file, to a PNG file.

 

This caused a lot of white pixels appeared all over the image. I've tested a lot, and anywhere good at technology.

 

Any tips or info will help.