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weird concatenate tunnel results

Can anyone explain this?

 

When i run the attached I get zeros in the concatenated (1D) array output for the second and third iteration of the loop. The formula node is outputting nonzero data as seen in the In the non-concatenating (2D) array.

 

In an attempt to disagnose, I put a flat sequence around the formula node:

Untitled2.png

When I run this I get an error message:

Untitled.png

and the VI becomes "broken" with a message that LV needs more memory to compile the VI.  The VI remains broken through a reboot of the computer and only goes white-arrow if I do ANYTHING to the contents of the formula node. 

 

Three symptoms:

   1] unexpected concatenate tunnel results

   2] fpsane.cpp error

   3] broken arrow with "need more memory" error

 

I have seen all of these symptoms in a different, more complicated VI, and replicated them by creating the attached from scratch  -- I don't think there is anything peculiar (e.g. corruption) about the VI and the issue is within the code.

 

LV2013-32 SP1 Professional Dev System on Win 7-64

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Works fine in LabVIEW 2015.

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Okay in 2014 SP1

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In 2013 SP1, I see the same behavior OP is.  The output array is 20,20,0,0,0,0

 

It looks like there's some buggy behavior that was corrected before 2014

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