devtrackers.gg
Do you remember the old bug ("mechanic feature") where for example Light Bulb factories would not fuction properly when the Filament Factories were too close? The carts from LB wanted to get the resource directly from the FF, but not all FFs were close enough, yet the LB carts didn't want to get the resource from the Warehouse. The solution was to move the FFs farther away from the LBs and thus force the usage of the Warehouse carts.
That trick doesn't seem to work for Typewriters and Lacquer. On paper I overproduce Typewriters by 12 (compared with the consumtion), but still my population of Investors keeps fluctuating, because they don't have enough Typewriters.
On the Chemical Plant/Assembly Line island I overproduce the Lacquer by 20 and the two types of factories are on the distant ends of the island. It still doesn't work. The productivity of Typewriters keeps jumping from half to almost max, they refuse to take the Lacquer from the Warehouse half of the time. I have to admit this is rather irritating.