Last season (2017-18) I could upload a gpx file onto the EO browser Sentinel-2 image (or any image). This was very helpful in order to understand ice conditions compared to where we skated, wit or without problems. Today I could not upload such a file.
Why is the uploader asking for a polygon?
I used the “Upload data” tool. Is this for something else, and if so, how can I upload a gpx track today?