u/Impossible-Cover589

I managed to research and create the Elytra harness, from Thaumic Augmentation, and I know of putting the banners and such on them, but it says 'Other cosmetic items may work as an upgrade as well'. I'm not sure what that means, and I'm finding it hard to search online about such things because old mod is old and not relevant to what everyone's playing. If it helps, this is a version from 1.12.2

They're slightly moving to the side so it's not a gigantic deal, but they do get stuck on it if they're coming to do returns from the far side that way it seems. Who knows, it might just be because this is 1, an endgame save, 2 a save from when I first got the game so it got wonky with the update somehow.