As I understood, logistic robots delivers requested items until it reaches request count, or maximum chest item quantity (item_max_stack * cell_count).
When in chest there are items with wrong stack size (changed by mod, or script), bots continiously trying to deliver items to this chest. Of course they cant. But they will do it forever, util chest item quantity become normal.
But i have to notice - this problem appears, after I removed stack count changes and reloaded save when this changes was previously applied. That mean bots undertanding that chest is full, only if chest quantity equal current values of (item_max_stack * cell_count) and ignores higher values.
Also, if I removing excessive amount from chest, bots stops their delivery
