For the Logic Users amongst us, the equivalent is “Include Audio Tail.”
So if you find Logic is leaving a long period of space after a Bounce, that will most likely be the issue, just as it is for FL Studio.
What happens is many of Waves plugins include an Analog option. Many users turn it off, but personally I think it sounds more organic with it on. That being the case, the DAWs have no way of telling the difference between a reverb/echo tail and a noise tail.
I generally leave it disabled but extend the song end marker so that it’s long enough to catch any tails. This usually avoids these type of issues.
It should work the same for FL Studio and other DAWs.