Possible to make sure setOvercast and setFog are complete?

[CarlGustaffa 4]

Is there a sure way to know that setOvercast and setFog are actually complete?

I have these lines going in the end of the script, inside a while {true} do loop:

waitUntil {overcast - olcur < 0.01; fog - fgcur < 0.01};

and

waitUntil {sleep 2.345; scriptDone envhandle; scriptDone windhandle};

but still, under some circumstances (mission overhead and accelerated time), it appears that the script is being restarted without the previous setXxx commands being fully complete with what they do.

The handles envhandle (overcast and fog) and windhandle are separate spawns inside the loop, where the delay in the parallel run fog and overcast are on very tight loops: 0.01 setXxx followed by sleep 0.02 (just to make sure, but 0.0 setXxx also doesn't help).