I first thought this was a BUG an posted it in the other forum. Then I found others here discussing similar problems on their slots/lines.
I pick the [Fit Windows] Slot as an example here…
When I set up lines and slots early in the game I do not have a lot of upgrades available.
The stockpiles at all the slots work out fine at that time.
After a few more hours/days I am able to build new lines or upgrade already build slots to include options like “Electric Windows” at the [Fit Windows] Slot.
At first the stockpile at the slot fills as expected with enough windows for at least 2 production runs and some additional servos. Behavior as expected.
After 3 to 5 runs - cars going through and getting windows - the ratio between windows and servos gradually change to 12 to 14 servos and only 2 to 4 windows.
2 windows aren’t enough for a Sedan or SUV… even not enough for a compact car… and it takes time to “delete” the excess servos and order more windows. It is possible to compensate for that a little bit with placing a stockpile thing next to the slot, but I think that shouldn’t be necessary to get windows for each run regardless of the “predictive stock control”-upgrade or not.
Yes, the windows stock at the slot might be almost depleted after a run for a sedan or suv, but shouldn’t be filled up with servos even with the windows stockpile next to it.
That behaviour is not only with the [Fit Windows]-slot, but several others too. They start out with a nice ratio between basic parts and parts needed for upgraded designs and after a few runs that ratio changes and there are not enough basic parts available anymore for even one run.
To be honest that is a bit frustrating for me…
Englisch isn’t my first language and I hope you still understand what I mean…