Thank you for your post.
I am able to replicate the problem on both Mac OS X 10.6.4 (Snow Leopard) and Mac OS X 10.5.8 (Leopard). I am unable to reproduce the problem on Windows XP.
I have forwarded your post along with my findings to our Development and Software Quality Assurance (Testing) departments for review and confirmation. As information becomes available to me, I will let you know.
According to others, there are some additional circumstance that affect whether this problem appears, including higher record counts. I made me tests with small record sets.
This bug still exists in FMP12.0 and MacOS 10.7.4 lion