Stack inserter quality filter does not work properly

[gujarat6]

Hi!

I've noticed something really weird. My stack insterters sometimes grab items which are unfit for the filter set. I have only noticed this happen regarding quality filters. Here is an example below:

stack_inserter_bug.png (389.74 KiB) Viewed 498 times

As you can see, I've set up filters for items higher than normal and lower than epic, but the inserter still grabbed epic item. I've noticed this happen on multiple planets, with multiple items.

[LCStark]

I don't think those filters are considered as a single condition together, I'd expect them work more as an OR than an AND. So it will grab all items of "less than epic quality" and all items of "greater than normal quality", so in effect all items.

[jagholin]

I don't think those filters are considered as a single condition together, I'd expect them work more as an OR than an AND. So it will grab all items of "less than epic quality" and all items of "greater than normal quality", so in effect all items.

That's exactly what happens, so it's not a bug.

To OP: if you want the inserter to grab items that have quality between normal and epic, switch filter mode to "Blacklist" and invert all your conditions (turn them to "greater or equal to epic quality" and "equal to normal quality" respectively)

[gujarat6]

I don't think those filters are considered as a single condition together, I'd expect them work more as an OR than an AND. So it will grab all items of "less than epic quality" and all items of "greater than normal quality", so in effect all items.

You're god damn right. Thanks...

[BraveCaperCat]

Not a bug, also known as User Error.
Try blacklist + above epic + below common.

[gujarat6]

Disregarding the wrong filters on this inserter, I am pretty sure I have seen it yesterday on an inserter which had only filter set for normal items and it would grab > normal qualities as well. Maybe that has something to do with the fact that it was standing at the output square of a recycler? Can item be forced to an inserter that way?

[LCStark]

Disregarding the wrong filters on this inserter, I am pretty sure I have seen it yesterday on an inserter which had only filter set for normal items and it would grab > normal qualities as well. Maybe that has something to do with the fact that it was standing at the output square of a recycler? Can item be forced to an inserter that way?

Looks like that would be a "no":

11-16-2024, 13-33-34.png (584.3 KiB) Viewed 401 times

[gujarat6]

Disregarding the wrong filters on this inserter, I am pretty sure I have seen it yesterday on an inserter which had only filter set for normal items and it would grab > normal qualities as well. Maybe that has something to do with the fact that it was standing at the output square of a recycler? Can item be forced to an inserter that way?

Looks like that would be a "no":
11-16-2024, 13-33-34.png

Experiment with a sample size of 1. I had a block of 1200 recyclers and would notice a couple of them would have > normal quality item after a couple of hours.

[BlueTemplar]

And that's not you forgetting that quality modules in recyclers can upgrade item quality too ?

[gujarat6]

And that's not you forgetting that quality modules in recyclers can upgrade item quality too ?

That's the whole point of that recycling block. I'd run items through it in a loop. One stack inserter would take out normal quality items and the second one, bulk inserter would grab > normal quality items out of it. But occasionally, I'd see the stack inserter which had the filter only for normal items stuck at waiting for a full stack of > normal quality items. It looked as if it got forced an above normal item for some reason.

[LCStark]

Experiment with a sample size of 1. I had a block of 1200 recyclers and would notice a couple of them would have > normal quality item after a couple of hours.

You are welcome to repeat it on a larger scale, but I don't think anything can automatically input "into" inserters, regardless of the filters.

[gujarat6]

Experiment with a sample size of 1. I had a block of 1200 recyclers and would notice a couple of them would have > normal quality item after a couple of hours.

You are welcome to repeat it on a larger scale, but I don't think anything can automatically input "into" inserters, regardless of the filters.

Yeah, I'm still running that block, I'll see if that happens again, but yesterday I was pretty baffled.

[BraveCaperCat]

Experiment with a sample size of 1. I had a block of 1200 recyclers and would notice a couple of them would have > normal quality item after a couple of hours.

You are welcome to repeat it on a larger scale, but I don't think anything can automatically input "into" inserters, regardless of the filters.

You can automatically input into inserters, but it disregards the filters.

[Muche]

I tried to manually put an uncommon iron into a stack inserter filtered to normal quality. It immediately dropped it, disregarding the stack size.
I was able to get it "stuck" if I disabled its filter, put one uncommon iron into its hand, then enabled the filter again.

From that one picture of your setup you don't seem to meddle with circuit network.

Maybe there is some rare race condition with your specific stack & bulk inserter capacity combination.