Factorio Forums

I have three buffer chests, each requesting 2000 stone.
I have one provider chest, a substation, and roboport.
The roboport is connected to the substation and sends the logistic requests to the substation.
I put one logistic robot in the roboport.
I put 2000 stone in the buffer chest on the left.
The substation correctly shows there are requests for 4000 stone.
I then put one item of stone in the provider box.
The logistic robot moves it to one of the right two buffer boxes.

The substation now incorrectly shows there are only requests for 2000 stone, it should still be 4000.
If I reduce the amount of stone in the left most chest to less than 2000 the reported requests correct to 4000.
If I add stone back into the left most box, taking it about 2000, the reported requests remain at 4000.

If I then put a stack of stone in the provider chest, the reported requests drop back down to 2000. Again this should be 4000.
(Numbers are approximate).

This only happens if there is a logistic robot to move the stone between chests.