I tried to trade ink sacks with a wandering trader and the inks don't work in any crafting recipe for some reason. I tried to add a video but the file size is too big :/

Regular ink sacks apear to be working fine, but the ones you obtain from wandering traders apear to be whole separate items. They won't even stack together. I tried rejoining and the problem still occurred.

extra info;

this is happening on a realm, which I don't own.

I have been keeping these in an ender chest when rejoining (Don't know if that's useful or not but maybe)