Why can't I add a new map?
You might have filled up all your slots. If you haven't bought the season ticket, then you can buy it for extra map slots. You can also delete a map to make a new map. If that doesn't work, refresh the page.
Top tips for troubleshooting?
Refresh: A simple page refresh solves over 90% of issues.
Check Browser: Ensure WebGL (Graphics acceleration) is enabled (it is by default in most browsers).
Update Software: Use the latest version of Chrome and update your iOS/Windows/MacOS to the latest version your device supports.
Check Wi-Fi: Switch to a 5 GHz network to prevent packet loss
If your jumping is weird (like you are going up, levitating for a second, then going back down), it is likely a server error.