I am pretty sure your map is published. It is just that searching for maps via username is glitched (at least for PS4). Try searching via map name. For instance if you searched by my PSN name you wouldn't see a single map, but I have three published.
Hi, this is normal, sometimes it writes that the map was upload, but it was not. Try reupload and don´t do anything other!! Click on upload and wait until done. I am on PC too.
I am pretty sure that uploading a map from the editor on PC is not recommended. It is best to upload your map from the main menu which works every time.