Whenever i select a dank in the hotbar it outputs this to the console:
"OpenGL Error: 1284 (Stack underflow)"

mod version : 1.4-pre1 to 1.4-pre4
forge version : 28.0.83

now i know that this is probably due to optifine and most mod devs don't bother with it / can't do anything about it but i figured I'd report it anyways. And it also used to not output this message in version 1.3a (with optifine as well).

I just really want the construction ability, which seems to be from 1.4 and onwards? so i hope this can be fixed.

Edit: the error also seems to only appear when there's something in the dank.

it has to do with the rendering of the item in the slot, there is nothing I can do about this since optifine is closed source software so I can't see what is causing the issue and fix it, especially since the issue doesn't happen without it.

yeah i figured as much, maybe you could have a hotkey or setting to toggle the item preview thingy. Or find some other way to show it. If not no worries, i know optifine can be problematic.

added a toggle until optifine stops breaking things.

thanks, that's probably the best/only solution for now; I guess you can consider this closed.

Where is the toggle? I'm having this issue too...