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[2.0.57] Severe transport belt decompression

Posted: Fri Jun 20, 2025 8:42 pm
by Gergely
Possibly related: 466701, 129429

TLDR: Pictured is a transport belt decompressing all by itself. I also attached a video and a save for it. Note: The second transport belt after the splitter has control behaviour. For the video and screenshot I removed the connection to better observe the belt, but it is present in the save.
06-20-2025, 22-31-42.png
06-20-2025, 22-31-42.png (243.21 KiB) Viewed 258 times
Steps to reproduce
  • Open attached save
Expected
No gaps, or few gaps, depending on whether my splitter contraption works correctly.
Actual
A gap is inserted between every adjacent pair of science packs, severely limiting throughput.

Re: [2.0.57] Severe transport belt decompression

Posted: Sat Jun 21, 2025 11:55 am
by Rseding91
Thanks for the report however I don't believe we will be doing anything about this per the discussions on Discord.

Belt loops and splitters simply don't work as you're thinking they should when built like this and at this point in Factorio development there is no clear answer for changes to their behavior that doesn't break other things or make belt performance significantly worse in other cases.