Here are 2 videos, the first crackles when playing IN the latest VST by double clicking the chord sheet but not when playing in sync with Reaper,
the second one is in an old BiabVST and has NO crackles.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
BiabVST-Playback-Noise.mp4 (2.03 MB, 32 downloads)
BiabVST-no-noise-old-VST.mp4 (1.11 MB, 31 downloads)