Factorio Forums

Hi everyone. I've got a strange problem with spidertrons on Nauvis. I can't get them to insert items into chests or pull items from chests quickly using their construction bots and personal roboports. Only one bot activates and there is considerable delay between actions. This works FINE on my spidertrons on all four of the other planets. But my Nauvis spidertrons simply refuse to operate correctly. Is this a bug? Am I doing something wrong? Please help.

I made a video clearly illustrating what is happening.
https://www.youtube.com/watch?v=Mh-i1MKhHdE

Please attach a save file showing this issue.

See attached save file.
I've queued up the transfer of a lot of rockets from a spidertron to a steel chest. It's right next to the player so you should be able to see it as soon as you load up. Thanks for looking into this!

PS: There is a spidertron on Fulgora parked next to a chest where you can try the same thing and it will work just fine there. Only Nauvis spidertrons are affected.

I looked into the issue, and it's related to all of the productivity modules you have requested to be inserted into mining drills on Nauvis. All of the ones that aren't within any network range. Specifically, these 3:
Fulfilling or removing those requests will cause the other requests to be serviced faster.

Oh... wow...

Yeah those were from a blueprint being laid down. I had no idea unfulfilled module requests would cause this behavior. Is that intended behavior or is it a bug?

I'm grateful to know the cause! Thanks!

I believe it is for performance reasons - 28675 / 69615 / 95217 / viewtopic.php?p=588248.

Though it does make me wonder why all your bots will happily pick up the entire chests and all its contents quickly if you deconstruct the chest. And none of this affects your own personal construction bots. Just that of the spidertron. I've never had any performance hits due to the unfulfilled module ghosts. Those were placed probably over 100 hours ago.