Okay, I got it working on 13 Sep.
Please understand, I think you should correct the 'country ICAO' descriptor within the script that governs search criteria. (e.g. upon tapping 'PDF' from map screen dialog box).
The app currently requires all Australian PDFs be put in a folder called 'YM'. I know you will agree that this is wrong as a cursory check of any of our [Australian] NAV items clears away any confusion.
We [now] know the storage folder should be labelled 'Y' in accordance with our country's ICAO discriptor.
However, I do not feel this is urgent anymore.
Thanks again.