[Discuss-gnuradio] Simulation inconsistent (Time interleaving block)

[hoim]

Hi all

I have a simulation problem with my time interleaving block. If I simulate my 
block the most time all tests get passed, but in average every 7th simulation 
the tests don't pass and I get the message:

Traceback (most recent call last):
  File "./qa_howto.py", line 239, in test_007_time_interleaving_vff
    self.assertFloatTuplesAlmostEqual (expected_result_0, result_data0, 6)
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/gr_unittest.py", line 
85, in assertFloatTuplesAlmostEqual
    self.assertEqual (len(a), len(b))
AssertionError: 86016 != 80640

Had somebody in the past the same problem? I have no idea what the fault could 
be.
Any idea? Any help will be appreciated.

Thanks,
Michael