I've have a very similar problem on a song I'm working on. The issue sounds as described by eddie1261. I have a guitar track I recorded and then made multiple copy/paste operations. Everything sounded fine when I played it back within RealBand but when I merged the audio & VSTi/DXI tracks to a stereo wave file, the guitar track would seem to start lagging around the middle of the song (measure 40)and get progressively worse towards the end of the song at measure 82.

One difference is the guitar track was recorded clean and I used no effects within RealBand on the guitar track.

I tried the steps outlined in this forum using consolidate and it did seem to fix my problem.

Just wanted to thank you all for the good advice since this issue has driven me nuts for a couple of months.
Del


Del