Somethings a little screwy, need to investigate. if you place down a newly made quantum chest, and click a stack less than 64 into the chest it goes straight to the output slot fine. But if you place another stack in of the same kind it overwrites that stack AND the size, so a stack of 17 could be overwritten by a stack of 9 etc...

created by me and fixed by me all before anyone even used this tile