Me system bug

[Ev0lution]

i tryed making a system that was auto prosessing meat for me and it worked fine until i could take out stacks and stacks of meat and still have like a stack of meat left in the me system. basically duping and when i put it back again and i was going to take some meat out again all the meat went back to 1 stack. and i contacted dezegames (he is helper) and he said i needed to ask on the forums because he thought it was a bug instead of a missconfig. i aslo have a video of it if it was confusing to you