I used 'create a subvi' on a portion of a diagram that is to save some data
using the excel toolkit. The subvi had a file reference input and output.
But now when I run it the reference seems to get corrupted (or at least not
work right). I tried deleting the input and output reference and got new
copies from one of the supplied excel toolkit vis but it still wont work
right. I can get it to work by not using the output reference and just
wiring the following vis to the input reference. But I wonder how it is
getting corrupted. Even if the reference is not used at all in the subvi
but is just wired from input to output it still messes it up. Anyone know
why this is happening?