Yes, I’ve confirmed that here - https://github.com/xibosignage/xibo/issues/1229
It’s impossible to delete the affected ticker/dataSet view widget from the web ui, it is however possible to delete it via API
If you don’t have postman (or similar) application added to your CMS, now is a good time to do it, instructions are here - 1.8 API Introduction
Now in regards to this particular issue, we will need to remove the ticker widget via API.
1 - Get to know the playlist id, to do that we will use the following call
GET {{url}}/api/layout?layout=YOURLAYOUTNAME&embed=regions,playlists
Please replace the ‘YOURLAYOUTNAME’ with your affected layout name to filter the results of the call.
Get the correct playlist id from the response
2 - Get to know the widget ID we want to remove, we will use the following call
GET {{url}}/api/playlist/widget?playlistId={playlistId}
Please replace the {playlistId} with the id of your playlist
3 - Delete the affected ticker id from the playlist, we will use the following call
DELETE /playlist/widget/{widgetId}
Replace the widgetId, with the id of your affected ticker widget.
If something needs clarification, please do let me know.