Annoying edge seams

I know this might sound a repetitive question but it’s actually not. Unlike other topics where people face this issue with static lighting and bad lightmaps, my problem is that I’m using fully dynamic lights and still have to face this problem. As far as I know, dynamic lights do not use lightmaps and mine are well set up either way. What could be the problem?

I’m using a color palette for a texture so there is no chance for bad texture painting or anything.