I decided to start a new thread here to get more attention...
If you record an audio clip, change the length of it and then glue it, the
resulting clip is one sample shorter. If the length of the clip is "quantized" to a grid, you can clearly see the missing samples when you loop the clip by dragging it.
This bug has been there several times before, it seems. It has been fixed many times too. But it's here again.
Older threads about the bug:
http://forum.cockos.com/showthread.php?t=8764
http://forum.cockos.com/showthread.php?t=39822
New bug report:
http://forum.cockos.com/project.php?issueid=3276