Factorio Forums

Posted: **Wed Aug 19, 2026 3:18 pm**

Using this parameterized blueprint, setting the item to a requester chest will causes flickering behavior. setting it other crafting items is fine:

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: 08-19-2026, 08-17-48.png (1.29 MiB) Viewed 275 times

: 08-19-2026, 08-17-54.png (1.43 MiB) Viewed 275 times

Posted: **Wed Aug 19, 2026 3:47 pm**

Not a bug. There was a behavior change around assembling machine's set recipe between 2.0 and 2.1 where set recipe no longer does magic self subtract to ignore values assembler is sending, and your assembler also has "read ingredients" enabled which provides signals that are interfering with "set recipe". You will have to update your blueprint to use the checkboxes near the Input line and Output line to select which wires will get ingredients content and which wires will be used to set recipe,

Factorio Forums

[2.1.14] Setting crafting recipe via combinator flickering

[2.1.14] Setting crafting recipe via combinator flickering

Re: [2.1.14] Setting crafting recipe via combinator flickering