Is there a reason a call to Split() should work in one instance and not another? [closed] - vbscript

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I'm writing a script (vbscript) to generate Components that represent code modules (or whatever you'd call the abstraction of a C++ Class for C) in C. Each Component will have Elements for all the structs and enumerations in each module, as well as an interface for the defined functions in the module.
A separate Python script is extracting all of the pertinent information from the source and header files and storing them in a separate file, in a format that is easy for vbscript to deal with (a previous version was directly parsing the code in EA via vbscript, one file at a time, but the limitations of InStr were too great and the pull of Python's regular expressions package were also too great.
My script is working fine for enumerations and structs, and is working fine for functions in the interface--until I start adding Parameters to the Method elements.
One particular call to Split() is silently crashing the script. The call is verbatim to several other calls that are working perfectly fine, and the error box that I get when I execute that line in Debug mode is wordless, with only an OK button and a blue 'i' icon.
Here's a function that contains a call to Split() where the call is working correctly:
Function CreateStructs()
dim structsEnd
structsEnd = false
do while not structsEnd
line = file.ReadLine()
splitLine = Split(line, "#")
Select Case splitLine(0)
Case "STRUCT BEGIN"
CreateStruct splitLine(1)
Case "STRUCTURES END"
structsEnd = true
End Select
loop
End Function
And here's where it's not working:
Function CreateFunct(functionName, ByRef functionList, ByRef functPosition)
dim newFunction as EA.Method
dim newParams as EA.Collection
dim newParam as EA.Parameter
dim position, functEnd, access, returnType
dim newFunctionStereotype, newFunctionReturnType
functEnd = false
line = file.ReadLine()
newFunctionStereotype = Split(line, "#")(1)
line = file.ReadLine()
newFunctionReturnType = Split(line, "#")(1)
set newFunction = functionList.AddNew(functionName, newFunctionReturnType)
newFunction.Stereotype = newFunctionStereotype
newFunction.Pos = functPosition
do while not functEnd
line = file.ReadLine()
splitLine = Split(line, "#")
Select Case splitLine(0)
Case "ARGUMENTS BEGIN"
'CreateArguments newFunction
Case "FUNCT END"
functEnd = true
End Select
loop
newFunction.Update()
End Function
Both calls are within the do while blocks. The variables line and splitLine are "globally" defined in a separate script file that has been !INC'd
I'm at a loss for what to do and any help is greatly appreciated.
Edit: The variable being split is not empty when the silent crash happens, and the file being read from is not at EOF.