DrKoz

ah, I think I figured out our difference. The vanilla bug is with air breathing engines only (right? is that what you mean? I've confirmed that with 1.8 just now), while with realplume you get the same problem with other rocket engines... Maybe the realplume symptom could help figure out the root cause of the vanilla bug, for some smart programmer (not me)?

I noticed with both 1.7 and 1.8. Yeah, I’ve seen that bug post, and assumed it was a vanilla bug too for a long time. BUT... with 1.8 arrival, I removed all my mods and it was fixed (!). Then I put mods back and it was brokey. So re-added mods one at a time and realplume was the culprit. Smokescreen is fine alone. I’ve only experimented/confirmed with liquid and solid rocket engines, not air breathers yet ...I just did some more experimenting, and the vanilla bug is with air breathing engines, while realplume "extends the bug" to other rocket engines...

I've noticed an issue associated with RealPlume -- the engine sounds don't decrease in volume as you zoom out. Anyone else confirm?

I've noticed this, but only when I have realplume mod installed, could it be realplume related for you as well?