Split clips messed up audio track in weird way.

OMG...I matched volume on a vocal track by splitting clips and inserting Boost11 plugin.  It sounded fine, but the exported WAV file had some words cutting out.
When I bounced two clips back together where the split was, the track sounded like the exported file, cutting out at the same spot.  When I did undo on the bounced together clips, the track sounded fine again.  But the exported file has the cutting out where some of the splits are.
I don't know how to fix the audio track, which sounds fine unless you bounce two clips together.  Either way the exported WAV file reflects the cutting out.
I'm using Sonar Professional on a PC.
Anybody else experience  such a thing?