After ten days of normal functioning in which I saw the logs, starting from today they are blocked again.
Now I have performed the reset again and I will see if the logs will work properly again.
The ten connected stations are started in average one time a day so I have about ten events per day. Could you please simulate this scenario in your lab as well? Is it possible that nobody has the same problem? How amount the storage memory for logs 1 or 3 MB?