🚀 go-pugleaf

I have a problem where ID doesn't seem to be correctly seeing an existing frame. The conditional below always returns false - even when the same text file is selected: 

 set myfile to (choose file) as text set thelabel to myfile & "foo" tell application "InDesign 2.0.1" 	tell document 1 		if exists (text frame 1 of spread 1 whose label is thelabel) then 			set myframe to (text frame 1 of spread 1 whose label is thelabel) 			place myfile on myframe showing options no retaining formatting yes 		else 			set myframe to make text frame at page 1 with properties {geometric bounds:{0.3, -109.0, 3.3, 0.0}, label:thelabel} 			place myfile on myframe showing options no retaining formatting yes 		end if 	end tell end tell  

However, if I remove 'myfile' from 'thelabel' and simply set thelabel to  'foo' it returns true (as expected) on a second iteration. 

Could there be a limitation on the length of a label or can anyone see any other reason why this is failing? 

kim