Factorio Forums

This might be a feature request or a nitpick, but it seemed like weird behaviour to me.

What did you do?
If you can reproduce the issue, provide the exact steps!

I set an infinity storage chest to "Remove unfiltered items", set its infinity filter to 500 roboports, then set it to 10 roboports.

What happened?

500 roboports stayed in the chest.

What did you expect to happen instead? It might be obvious to you, but do it anyway!

The number of roboports in the chest is reduced to 10.

Does it happen always, once, or sometimes?

Always, but only for the infinity storage chest type when the filter number is reduced.
The plain infinity chest reduces the item number to the filter number.
The infinity storage chest only deletes items when the filter is removed entirely.

This behaviour doesn't depend on the specific save file.

Thanks for the report however this is not a bug. If that’s the behavior you want, you want to see the filter to “exact”, and not ”at least”.

Makes sense! I was thinking of it like "trash unrequested", but that's a different setting.