Melodyne Prep: Line 83 & 487 Error

Thanks so much for mkaing this it is mega! I'm sometimes seeing errors, and sometimes not. I just actioned this on 6 tracks one after each other, 2 track worked fine, then the others each produced errors. Sometimes it seems to hang when Protools is asking if you want to delete the committed track (it hands waiting for input to say yes).

The error messagse are:

Expected String but got undefined: Line 475
Could Not Open popup menu: Line 85

Any help appreciated!