Hi All, I hope it fits the category chosen since wiring is a pretty basic functionality in node-red. The problem is that no clue why and when but sometimes the wires from my subflow inputs to the first node disappear (and the same happens to the output node wires). [image] Any hints are welcome! …

Are you able to reproduce it reliably? Is there any way to avoid this?

Every time I exported/imported the subflow it did it. I reported it (looking for my post now) and it was taken on as a problem. I won't say more just now. I'm searching a lot of posts and I think it was a real while back.

In our case, we don't even touch the subflows concerned. Someone deploys his work done on another tab/flow and the wires disappear after a while on certain subflows.

Ok, that isn't what I reported. Mine was I wrote a subflow on one machine and tested it. I exported it and imported it to another machine. The wires between the input and the actual nodes, and the nodes and the outputs were missing. I tested this a few times and, as said: I was told it would be…

I think your issue is the same. At least, the symptoms. The difference is that your input/output wires disappeared in the subflow on exporting/importing while ours disappear due to normal deploys (or god knows what).

Thanks! I hope it'll help them find the root cause and fix both as yours is reproducable while mine is not.

These are two separate issues. @Trying_to_learn reported an issue regarding the Link node wires disappearing. That is a different issue to the wires to the Subflow input/output nodes spontaneously disappearing.

I thought only that the logic handling the wiring is the same regardless of what kind of nodes are wired.

@r0ller I see you are on v1.0.2. Can you move to v1.0.4 to see if it happens there?

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Subflow input output wires disappear

Core Development

Trying_to_learn 26 March 2020 11:31 11

This is my thread:

Subflow wires missing

Jan 2

Topic		Replies	Views
SubFlow wires disconnected frequently General	4	393	21 September 2021
Problem detected when migrating subflows between machines General	25	279	9 June 2025
Link node connection disappearing General	0	440	24 September 2020
Wires not showing in UI after being saved from API Call Developing Nodes	5	332	12 September 2022
Imported subflow does not work General	4	454	18 December 2020

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Subflow input output wires disappear

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