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[2.0.55] Random gaps between items on belts created for inserters to drop into

Posted: Mon Jun 16, 2025 12:12 pm
by JigSaW


Some testing with debug visuals







Save: https://drive.google.com/file/d/1omCZb9 ... sp=sharing

Re: [2.0.55] Items on belts failing to properly move, creating random gaps for inserters to slot items into

Posted: Mon Jun 16, 2025 1:38 pm
by Loewchen
Is this belt running a loop?

Re: [2.0.55] Items on belts failing to properly move, creating random gaps for inserters to slot items into

Posted: Mon Jun 16, 2025 1:46 pm
by JigSaW
Loewchen wrote: Mon Jun 16, 2025 1:38 pm Is this belt running a loop?
No

Re: [2.0.55] Random gaps between items on belts created for inserters to drop into

Posted: Mon Jun 16, 2025 2:35 pm
by sparr
I have also noticed this in my attempt at pymods, where doing prioritization without splitters is important in the early game. I was surprised to need to add belts and do side loading, not being able to rely on inserters to be lower priority than items already on a full belt.

Re: [2.0.55] Random gaps between items on belts created for inserters to drop into

Posted: Mon Jun 16, 2025 2:58 pm
by JigSaW
sparr wrote: Mon Jun 16, 2025 2:35 pm I have also noticed this in my attempt at pymods, where doing prioritization without splitters is important in the early game. I was surprised to need to add belts and do side loading, not being able to rely on inserters to be lower priority than items already on a full belt.
I don't think sideloading would fix this issue. The problem is not inserters inserting when they shouldn't, it's belts creating gaps (for some reason) for any items to be inserted into them in any way.

Re: [2.0.55] Random gaps between items on belts created for inserters to drop into

Posted: Tue Aug 26, 2025 7:50 pm
by Loewchen
The save is no longer available.

Re: [2.0.55] Random gaps between items on belts created for inserters to drop into

Posted: Tue Oct 14, 2025 3:02 pm
by JigSaW

Re: [2.0.55] Random gaps between items on belts created for inserters to drop into

Posted: Thu Dec 11, 2025 8:08 pm
by Rseding91
Thanks for the report. After looking into this the underlying cause is 2 things:

1. Those belts have previously been connected to the circuit network and so force the merged belts to split there.
2. When the front belt gets backed up, the back belt may still be moving items further towards the front. This causes the update order to switch and gaps can form as the front belt stops and starts. Normally this doesn't matter but because of #1 you see it happen right where you have several inserters putting on the belt.

You can simply remove and re-place those belts to get rid of the control behaviors which should address that portion. #2 I don't believe has a solution and is an inherit flaw in how belts work that will likely stay forever.