So I've run into this problem where if I have Texture Filtering off, the parts have this really unpleasant jagged tearing, but if I turn texture filtering on, then all of the parts have a 1px white outline that ruins the way the parts flow together. No matter what size I export the parts, the jagged tearing and 1px outline happens. Either way it makes the model unpleasant to look at, and I'm not sure how to solve this issue?
From what I've found people's best idea is that this happens with clip studio and some other select program because they handle antialiased/semitransparent pixels differently, making them read as white instead of black in certain programs such as PNGTuber Plus and often discord.
The weirdest thing here is the fix - open each individual art file you use to piece together the model in Microsoft Paint (it's weird, I know), hit Ctrl s to save, and close paint. You've fixed it! It's how I've been fixing all of the models I rig and it's been working a treat, even if it is boring and repetitive.
