[.TGA images get saved as .PDN]

Every time I try to save a .tga image it gets saved as .pdn. This problem was submitted a few times already but no working solution was proposed.

 

What I tried already:

- Flattened the image (although it already had only 1 layer);

- Saved the image by choosing "Save as", selecting .tga from the drop down menu, setting image configuration;

- Updated Paint.net to the latest version;

- Tried every other available picture format option (all of them worked);

- Removed all transparency from the image;

- Tried typing the extension myself;

 

I would really appreciate a solution because I don't want to save images as .png and then use an external converter.

 

P.S. I use TARGA because that is the format which my game uses for sprites (mainly because reading a PNG file is unnecessarily complicated).