Hi Sidney, please zip the debug_monitor.log file from one of the affected flights (located in your PF3\Logs folder) and attach it to a post in this thread. Hope you are enjoying PF3!
EDIT: Are you pausing at distance from the airport? Note the following from the User Guide:
Pause Mode - this determines the distance from either the FAF, runway or
your destination airport you would like to pause FS/PF3. The first two options
(FAF/Runway) would not become active until you reach the last waypoint in
your flight plan, whereas the last option (Airport) is active for the entire flight.