That's weird
Didn't happen here.

Two things I would try;

Consolidate the track, this may be part of the issue. (Track - Select Whole, then Track - Consolidate audio region)
If that doesn't work, try turning off 2 Bar ending..

If you like trying new generations of realtracks, have you found the multi but different feature yet? RB will generate 6 or 7 versions of a section for you to pick through.


Make your sound your own!
.. I do not work here, but the benefits are still awesome