This process is working fine for my other rockets sending Sulphur. and I copy/pasted the design from plastic.
Sometimes if I request enough, and overflow will be requested from the logistics network. The space platform can detect the 16k plastic in rocket silos, but the plastic rockets never launch.
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edit:Updated, apologies first bug report, I had not read guidelines.
There is a scenario when I over-request more than the amount already loaded into rockets, the overflow will go through the logistics network.
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Sulphur that is working as intended
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Update:
Sulpher was working as intended. However, this, too, has now stopped.
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Updated again:
I think I've found a possible cause. It feels like a bug, but I'm not sure.
When a space platform is overhead, and requires 1 rocket full or an item but those items cannot be sent due to not having enough space, all instances of that rocket silo cargo type are paused. even if there are more than space platforms waiting for cargo.
ie: platform 'A' that needs empty 10 slots to receive a shipment of plastic to top up from 7.7k to 8k (topped up to throw anything over 8k back down)
Platform 'B' required 8 rockets of plastic (0-16k) with enough cargo space.
even though there are 8 rockets, platform 'B' will not receive its cargo until platform 'A' has received the cargo it is requesting or has left the orbit.