My understanding of this is that an FAWP should appear on RNAV STAR plates
The FAWP is part of the instrument approach, not the STAR - the STAR ends at the IAF. There is no ICAO charting requirment to have the FAWP on the STAR chart, and I have never ever heard of thus before - I assume it is a company 'thing'?
If it is an Ops Manual requirement, then it sounds as though you need company customised charts.