While making textures intended for a game engine I discovered a weird issue: when I export TGA files for some reason their bottom right corner pixel gets inverted. If I export the same image to PNG or JPG there are no issues at all. I'm attaching original .afphoto file as well as TGA and an upscaled PNG file converted from TGA for better view.
To reproduce this bug simply create a project and export it as TGA. You should notice exactly one pixel being inverted in the bottom right corner.
I'm using Affinity Photo 1.8.5.703
T_ConcreteWall06.afphoto
T_ConcreteWall06.tga
