The map editor interface doesn't show any pins, including the red default used to place markers (thus making it impossible to add markers without guessing coordinates). It also doesn't show the widget that allows turning on/off marker groups and switching layers. I replicated the issue for my map in Firefox and Opera. Here's a link to a screenshot of the console output, which contains some suspicious parts that might be clues: https://gyazo.com/98914b6c093fc5be5ec433025580988c
Open map to edit it. Feel sad as pins are nowhere to be seen. Pine for a little red drop-shaped icon to drag on the map.
Hi, this is usually caused by an issue with a marker. You can find a list of your markers in the map editor under the Marker tab. If you remove your latest markers the issue should be resolved.
There are no markers on the map. None. In fact, I deleted my previous map and created a new one from scratch to fix the issue. It didn't help, and it has had no markers.
I am really sorry I cannot reproduce this and the fact that it works for another map seems to be pointing either in a temporary connection error or a content issue.
Some troubleshooting later: I had created a custom pin where the name contained a + sign, which the code evidently didn't like. Renaming it didn't work, but deleting it and re-creating it with a new name did.
Thank you I will add the + sign in the list of not allowed characters!