Waveform family - broken with small values in family axis...

Greetings all,

I've encountered an interesting / frustrating bug that seems to be inherant to every family waveform object in IC6.14+.  If you have small values (<~4f) in the family axis of a waveform, you can't do math on the object correctly.

If you type the following example into the CIW,

Example:

l_x = linRg(0.1f 1f 0.1f)
l_y = linRg(1 10 1)

l_xy = (mapcar 'list l_x l_y)

a = artListToWaveform( l_xy)

l_fam_x = linRg(1f 5f 1f)
l_fam_y = (list a a*2 a*3 a*4 a*5)

a_fam = famCreateFamily("var" "double")
(foreach (f_x f_y) l_fam_x l_fam_y
  famAddValue( a_fam f_x f_y)
); foreach

newWindow()
plot(a_fam)
addSubwindow()
plot(a_fam/1)

You should see a waveform as shown below.

Notice that the first waveform appears to have every sweep item in it, whereas the 2nd waveform appears to only has 3 of the values in it.

If you pull-apart the waveform and look at the actual values, you'll find that the family waveforms with "var" set to 1f,2f and 3f all have exactly the same values.

Based on my tests, I've found the following:
IC6.15.500.6 - fails
IC6.14.500.11 - fails
5.10.41.500.6.147 - ok.

The obvious workaround answer is "don't do that".  However, this is a fairly disturbing bug since it affects all waveform objects that have a family curve.

Has anyone else see this issue?

Mark