Traccar v.4.10 multiple bugs

Hello

I used with same config and database a previously version without problem.
After I installed Traccar 4.10 on a new server with same config and database + same iptables rules there are multiple errors with the web interface:

1. Continously websocket errors
2. every time it is a websocket error firefox reload the web page
3. once reloaded it not anymore centered to the device that I previously select, no device is selected and I can see the full map of Europe
   In this version you are unable to monitor a device more than a few seconds on the map...
   Are there others who have this problem ?
   How to solve ?
   For now my only option is to downgrade Traccar to a previously working version.

Start downgrade to v4.9
Same problem with v4.9
Start downgrade to v4.8
No more problem with v4.8

probably watchdog, edit /etc/systemd/system/traccar.service
check forum

Probably you haven't updated default.xml config.