[2.0.55] Spaceship stuck waiting for fake delivery

[jedediah]

Attached save file has a spaceship named "Gleba? I Hardly Know Her!" that can't leave Gleba because it is waiting for a delivery (request slot is yellow) but nothing is being delivered, and there is nothing to deliver.

Screenshot 2025-06-11 at 3.45.50 PM.png (135.3 KiB) Viewed 328 times

What did you do?

There is a silo on Gleba that is loaded by inserter with legendary biter eggs from a buffer chest. The ship requests 99999 eggs with a minimum payload of 1. There are typically a few eggs every trip.

What did you expect to happen?

Whatever is in the silo should be delivered to the ship when it arrives, and the ship should leave after 10s inactivity.

What happened?

This setup works as expected most of the time, but occasionally it ends up in this state where the ship is waiting for a delivery that isn't real. I have found it stuck twice now over a few hours. I don't know what happened immediately before it got stuck.

Speculating: The eggs are in the logistic network briefly before they are inserted in the silo, so perhaps a logistic delivery is initiated through a different automatic silo, but then the egg is inserted into the dedicated silo and launched, and the logistic delivery is not cancelled properly.

The save contains a few utility mods, but it should work fine without them.

[Rseding91]

Thanks for the report. This is working correctly: if an item is available in the logistic network the auto-request logic will make the request on one of the available rocket silos.

If you then remove those items and manually put them in a different silo, or just remove them from the network - the game has no way to know that's a permanent state. For all it knows (and expects) the network will simply make more and eventually they will be put into the requesting silo and launched to the platform.

If you don't want this behavior, you can't have both manually filled and automatic silos *in the same logistic network*. You have to keep the items out of the logistic network and load them into the explicit silos, or leave them in the network and let the automatic silos launch them.

[jedediah]

It seems odd that a silo in this state can freeze a spaceship forever, and there is no way to configure the ship to time out and leave.

Shouldn't the automatic silo cancel the delivery if there are no longer enough items in the logistic network to fill the rocket? Particularly if the silo is empty?