Seem unable to pass a dynamic file name to cfexecute outputfile param

dev
1 
	<cfset var1 = "bla bla">
	
	<cfset fname = "output#var1#.txt">
	
	<cfexecute name = "#expandPath('mybatch.bat')#"
	outputfile="#expandPath('#fname#')#"> 
	</cfexecute>

While the above code didn’t generate an error, the outputfile parameter failed to be executed, that is, it did not create such an output file from the mybatch.bat run.

Lucee 5.2 on Windows 10. Thoughts?