I think I know what you are talking about. Sequential sound tends to lose track if you use time acceleration and stuff
like that. So if you want it to work normally again, you have to exit the simulation and also exit the Launchpad... So
totally exit Orbiter, so all the variables are reset, otherwise something gets stuck and works strangely or not at all
Of course once you restart, sequential sound will start from beginning, so you must start the scenario from the
beginning again
until the new orbiter version arrives, but that's tabu discussion as Brenton once properly put
Cheers,
Janez
PS: I'm on vacation, hence I'm not logged in