UI bug when accidentally assigning two channels with the same name

Server Version#: 1.29.2.6364
Player Version#: N/A
Tuner Make/Model: WinTV-HVR-955Q
Guide/Lineup name: Verizon Fios
Using XMLTV?: No
Channel number/Name: N/A

I’m hoping you don’t need the logs for this. Basically, I am subscribed to Verizon FIOS. I have set-top boxes and the channel guide is different than what I receive through the WinTV-HVR-955Q. The WinTV device receives a ‘basic’ level of channels. The names of the channels didn’t completely match during the scan so I needed to match some up manually. While I was assigning them, I accidentally assigned one channel with the same name as another one the Plex had discovered. When I clicked on Save, Plex seemed to be unresponsive. I checked in the browser developer console and it looked like Plex correctly threw a 500 error but that message doesn’t make it back to the UI. So, the person can’t tell that the problem is that two channels names are assigned to the same channel. Here’s the error json that is returned.

{
“message”: “Request failed with status code 500”,
“name”: “Error”,
“stack”: “Error: Request failed with status code 500\n at e.exports (https://app.plex.tv/desktop/js/824-824-28b816a11794a30b04c3-plex-4.96.2.28300-c28d352.js:2:551741)\n at e.exports (https://app.plex.tv/desktop/js/824-824-28b816a11794a30b04c3-plex-4.96.2.28300-c28d352.js:2:554164)\n at XMLHttpRequest.y (https://app.plex.tv/desktop/js/824-824-28b816a11794a30b04c3-plex-4.96.2.28300-c28d352.js:2:547063)”,
“status”: 500,
“data”: {
“MediaContainer”: {
“size”: 0,
“message”: “There is a duplicate channel mapping (Channels 25.2, 12.1 are mapped to Guide channel 512)”,
“status”: -11
}
}
}

TL;DR
Try to assign the same channel to two different channels. The UI won’t display any error but the user also cannot Save the changes or has any idea what’s wrong. (no error is displayed)

Thanks i made a report.