My design has a failed offset constraint; if Timing Analyzer is used to look at the failed paths, the paths in question are not listed. Although the constraint in shown in red, which signifies that the constraint failed, there is no list of failing paths below it.
To work around this problem, set the "limit paths reported" to 100, rather than only reporting paths that fail time constraints. You must then must pick out the passing paths from the failing paths, but the paths are all listed.
For more information, please also see (Xilinx Answer 3888).