# UIBuilder URL inconsistancies and issues
**URL:** https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853
**Category:** General
**Tags:** uibuilder
**Created:** [27 August 2025 09:31 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853 "2025-08-27T09:31:13Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Robert0](https://discourse.nodered.org/u/Robert0)
#### Post date: [27 August 2025 09:31 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853/1 "2025-08-27T09:31:13Z")
It happens from moment to moment. I currently have a clean setup of the latest node-red version and uibuilder version. I am having issues where the UIBuilder Node says that my URL is already in use.
However I can asure anyone that this is not the case. I have tried reinstalling node-red and uibuilder to get rid of this, but to no avail.
The issue is temporarily solved by redeploying my current build and or refreshing the page. If done, I can access and view my files but not always view my webpages correctly.
I made a quick recording of the issue, however it seems very inconsitant and slightly annoying to refresh and redeploy my flows if all I am changing is some html code. Here is a screenshot of my .node-red and uibuilder file location:
**[Video of used URL issue](https://youtu.be/xoQ-YVczbig)**
_Disclaimer: Please ignore my in the video trying to load pages/room.html and failing as the root is overview/pages/room.html_
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### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [27 August 2025 10:25 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853/2 "2025-08-27T10:25:53Z")
I suspect this is due to defining it in a subflow.
How many instances of this subflow do you have in regular flows?
If you move it all to a separate regular flow tab, does it still occur?
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### Author:  [@Robert0](https://discourse.nodered.org/u/Robert0)
#### Post date: [27 August 2025 10:38 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853/3 "2025-08-27T10:38:46Z")
Hi,
Im using indeed a subflow. However I tend to only use this subflow instance once. As I have in my current setup, as adding a subflow adds better readability in my flows, even if its meant as a single instance subflow.
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [27 August 2025 11:41 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853/4 "2025-08-27T11:41:25Z")
Ah, I don't believe I've tested putting a uibuilder node into a sub-flow for a long time! I don't know that anyone else does that. However, I can confirm that I am seeing the same issue, it is some logic issue in the uniqueness checks in the uibuilder Editor panel. I will add that to the backlog and get it fixed for the next release.
In the meantime, I can suggest 2 workarounds:
- Use VS Code for doing front-end code edits.
- Using link nodes instead of a sub-flow since you only want to use the sub-flow once. If necessary, use a separate flow tab with suitable link-in/link-out nodes. You can hide the tab if you don't want it showing normally. To access that flow tab, use a link-call node instead of the sub-flow node.
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [14 September 2025 11:48 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853/5 "2025-09-14T11:48:36Z")
You will be glad to know that I have discovered the problem.
When a node in a subflow is deployed, it does not have the same ID as a normal node, the ID is changed to be prefixed by the subflow ID. This is what was throwing off the duplicate check.
For the v7.5.0 release, I have added an improved check that copes with this.
Do note, however, that if you put a uibuilder node in a subflow and accidentally use it more than once, you WILL get an error because you will have 2 instances of the node with the same URL and that cannot be allowed.
So it is still best to avoid putting a uibuilder node in a subflow. Any of the other nodes in the UIBUILDER package should be fine in subflows.
v7.5.0 is ~~due for release soon~~ released.
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [28 September 2025 11:49 UTC](https://discourse.nodered.org/t/uibuilder-url-inconsistancies-and-issues/98853/6 "2025-09-28T11:49:26Z")
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