# Dashboard UI Undefined
**URL:** https://discourse.nodered.org/t/dashboard-ui-undefined/13127
**Category:** Dashboard
**Created:** [10 July 2019 19:38 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127 "2019-07-10T19:38:33Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@dwrona](https://discourse.nodered.org/u/dwrona)
#### Post date: [10 July 2019 19:38 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127/1 "2019-07-10T19:38:33Z")
Hello,
I have been working with a dashboard I created on a Windows 10 machine for quite some time without issue. I tried to run a second instance on a different port to try some new ideas without altering my original flow and in the process somehow broke my dashboard. Node red starts without error but the ui shows up as a tab named undefined. This is only the case in google chrome browser, it works in Firefox, and IE11, but crashes when used. It never crashed in Chrome. I have tried wiping node-red and reinstalling but get the same undefined issue. Can someone please help to resolve the issue?
Thanks,
Dave
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [10 July 2019 19:46 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127/2 "2019-07-10T19:46:21Z")
How are you generating another Dashboard? Node-RED only supports 1 Dashboard per instance of Node-RED.
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### Author:  [@dwrona](https://discourse.nodered.org/u/dwrona)
#### Post date: [10 July 2019 20:29 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127/3 "2019-07-10T20:29:47Z")
I am not trying to run 2 dashboards. I was trying to run two instances on different ports.
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### Author:  [@MarcHeppell](https://discourse.nodered.org/u/MarcHeppell)
#### Post date: [1 September 2023 17:19 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127/4 "2023-09-01T17:19:16Z")
Hi,
I have the same problem. I'm under Win11. How to know if I run 2 instances? If yes, can I remove one of them ?
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [2 September 2023 07:13 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127/5 "2023-09-02T07:13:08Z")
Welcome to the forum @MarcHeppell
The thread you have posted on is four years old, a lot has changed since then. Please start a new thread, explain the problem you are seeing, and tell us about your system. Hardware/OS, node-red version, node-red-dashboard version etc.
I will close this thread.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [2 September 2023 07:13 UTC](https://discourse.nodered.org/t/dashboard-ui-undefined/13127/6 "2023-09-02T07:13:17Z")