I find a rather interesting bug in regard of storage priority.
Let's say I have a higher priority storage area as a demand, take Nutrient Paste dispenser's hopper for example. And a main storage area where I store most of my stuff with lower priority, in this case the freezer.
In theory my pawn will try to keep the hopper at full stack, so he'll take 75 corn from my freezer and move it into the hopper. Then as long as someone takes a meal from the dispenser and the number of corn in the hopper go down by 8, in theory he'll try to move 8 more corn from freezer into the hopper.
Yet when a teleporter is involved in this process, things start to go nuts. Instead of taking 8 corn, he'll request the teleporter to move all 3000 corn inside the freezer out into stacks of 8. And even won't stop after the amount cap at teleporter's 120 stacks, spilling the entire floor with corn until the freezer is free of any corn.
Then our pawn, satisfied by the mess he just create, will happily take just 8 corn and move it to the hopper, leaving behind a corn-free freezer, chaos and even lagging the whole game in process.
I have no choice but to turn off every teleporter's hauling option to stop this from happening.
This problem can happen in many more circumstances, sometime it happen and sometime it won't. It occur randomly with or without any "smart" Hauling mod (Pick up and Haul, Common Sense etc.). And the more teleporter you have on map, higher the chance are for this to occur. I've already spent hours testing this bug and still can't wrap my head around what's going on. Further investigation on the cause would be required.