# Link node connection disappearing

**URL:** https://discourse.nodered.org/t/link-node-connection-disappearing/33271
**Category:** General
**Created:** [24 September 2020 08:54 UTC](https://discourse.nodered.org/t/link-node-connection-disappearing/33271 "2020-09-24T08:54:20Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![r0ller](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/r0ller/32/14327_2.png) [@r0ller](https://discourse.nodered.org/u/r0ller)
#### Post date: [24 September 2020 08:54 UTC](https://discourse.nodered.org/t/link-node-connection-disappearing/33271/1 "2020-09-24T08:54:21Z")

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Hi All,

This seems to be similar to two other issues reported earlier:

> [@Importing sub flows. Something isn't working](https://discourse.nodered.org/t/importing-sub-flows-something-isnt-working/19805):
>
> In reference to this thread: [My last post.](https://discourse.nodered.org/t/is-anyone-here-interested-in-train-signals-and-how-they-work/19759/16) Ok, you may need to look towards the top. I posted a subflow. I stuffed up, and wanted to go back to the working version I posted. I copy/paste/import it to NR. None of the internal links exist. The links to/from the output/input are there. But no internal links. ARGH! This shouldn't happen - yeah?

> [@Subflow input output wires disappear](https://discourse.nodered.org/t/subflow-input-output-wires-disappear/23630):
>
> 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). Any hints are welcome! Best regards, r0ller

This time I noticed that an existing connection via link nodes between two flows broke so I checked what goes wrong. When I clicked on the link in node, the editor did not show visually a connection which was listed when I opened the link in node configuration:

 ![link_in_missing](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/4/b425e3f332768ba13940cb495fab6d2f405fdf7d.jpeg)

After simply hitting the done button in the configuration, the "lost" connection (init-resync) appeared:

![link_in_added](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/a/0/a0ec7596db4b8f829987945550e427277f3daf5a.jpeg)

Deployed this "change" and the connection between the two flow started to work again. Does anyone have any hint on why this happens? This seems just as mysterious as the other disappearing wiring issues.

Best regards,  
r0ller

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### Author: ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)
#### Post date: [23 November 2020 08:54 UTC](https://discourse.nodered.org/t/link-node-connection-disappearing/33271/2 "2020-11-23T08:54:22Z")

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