Real weird thing, but according to the logs "Armourer's Workshop" is having texture issues.
This is so this is easy to replicated as all you have to do is open the inventory. Simple as that, when I do I get spammed in the logs with this.
Because of this whenever the inventory is open my RAM gets flooded limiting me to keeping the inventory open for so long. Expectedly too is that when any interface is open (like a crafting bench) is open it doesn't happen.
(just realized I put the syntax on pastebin as javascript and not java, derp)