We are aware of some scenarios where changing the simulator time (or using active pause) can cause the timers in the RJ code to go out of sync with the timers in MSFS 2024. We are investigating this, and we aim to have a fix implemented in an upcoming update to the RJ.
In the meantime, we would recommend minimising any time changes or active pause usage when using the RJ in MSFS 2024.
Mark - Just Flight