Hi kagebatsu. It's optimized for RPGMaker. The textures are 96x96px. 24pixel border, then 48pixel seamless texture and 24pixel border. So the seamless texture part is 48x48px in the middle. Do you know what I mean?
Viewing post in missing tiles?
You might have to unpack the tiles for use elsewhere. This is a great tool for that, and the developer is very responsive. https://fmoo.itch.io/autotile-packing-tools