I'm extremely new to this service, so I apologize if this is a stupid question. I'm using the web client, and I'd like to add no-go zones based on some coordinates I have recorded. I tried putting the coordinates in uMap, then downloading a .geojson file. However, when I try to upload the file in BRouter, I can select the file in the upload pop-up, but no text appears in the "file" box, and when I click upload, nothing happens. I'm not sure if I'm doing something wrong or if there's an issue with the system. Also, if I upload a file using "load tracks" it uploads and inputs fine.
Thanks for the help,