Write to Measurement File returning <Not a Path>

[Jason.Wise]

I have a program that takes data from a DAQ and writes it to a new file for 1 minute every minute. Then it reads that file averages the values and write/appends that to a different "master file".  The only problem is that I am recieving an output of <Not a Path> from my write to measurement file's file output terminal after a little bit of time.  It starts out retuning the value in which it is saving the file to, but will then change to the error.  I am using Labview2009 and have the write to measurement file creating a new file after 6000 data points have been collected (a 100 Hz signal).  Attached is my code. Please let me know if you have any ideas.  Thanks.

[RavensFan]

I can't tell.  Your Write to Measurement File has been converted to a regular subVI which you have not attached.

What version of LabVIEW are you using?

I remember there are a couple of bugs with some relatively recent versions of LV where the Express VI would forget the path depending on how the Express VI was configured.

See this thread.  http://forums.ni.com/t5/LabVIEW/error-using-write-mesaurment-file-express/td-p/1057320/page/2