Factorio Forums

Posted: **Fri Jan 23, 2026 7:51 am**

steam, space-age

I have a circuit that discards items when there are more than a certain number in the space platform.

It uses the Selector Combinator to select items that have more than x stacks in the Space Platform hub.

I was trying to construct, with "Auto request missing construction materials enabled" and noticed my thrusters would start to build and then stop.

It took a while to realize they were being chucked off the side of my platform. I was only requesting a single stack of thrusters, and only discarding item with more than 5 stacks in the hub.

I started watching the circuit network and saw a signal flash right when the cargo pod lands at the space platform.

Posted: **Mon Jan 26, 2026 8:12 pm**

Thanks for the report however the issue is with your combiantor setup. Signals take a tick to propagate between machines and the green wire is being delayed by 2 machines (red -> stack size and stack size -> green). So for 1 tick the red signal is > the green and it is sent to the inserter.

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[2.0.72] Invalid circuit signals when cargo pod arrives at platform

[2.0.72] Invalid circuit signals when cargo pod arrives at platform

Re: [2.0.72] Invalid circuit signals when cargo pod arrives at platform