TestStand Error calling LabVIEW VI

[Nelson19]

I have a simple TestStand sequence executing some basic LabVIEW VIs in batch model.  One step in the sequence throws an error, code -17308, "specified value does not have the expected type".  I search on the NI forum and on Google, but cannot find the explanation for the error. I attach here the zip file which contains my sequence, the LabVIEW VI and the error message popup.

[~jiggawax~]

My guess is that StationGlobals.U2653A_Channel is not an array of numbers.  Is it an array of strings?  What is it?

Regards,

[Nelson19 · Accepted solution]

No. It is not.  Anyway, I made changes and the error went away.