The most likely reason is that you have incorrectly configured timezone on the tracker.
Please, regardless of your location, set up timezone 0 (UTC) on the tracker. After changing the timezone, the latest data may not be displayed completely correctly for about 1 day, since new data may overlap with previously received data.
Your local time zone will be determined from the settings of the device (phone or computer) on which you are using the application.
If the problem is not resolved, please write about problem at email@example.com, indicated your login, as well as the IMEI (ID) of the unit with which the problem arose on.