Hello, flozirkus ,
To understand the reasons for this behavior of the system, we will need to examine your unit.
Therefore, please write to us at support@gps-trace.com indicating the login, unit ID, time interval (when the trip was interrupted and divided into two) and also in the letter indicate the link to this topic on the forum (so we will understand that it is you) .
Then we can check the situation additionally, and give an answer about the reasons for this behavior of the system.