Not recommended! and please DON´T do that … IT IS NOT SUPPORTED!!!
I have installed the WIII scenery now and can´t reproduce it, the same with the cloudsurfasia WSSS scenery.
Here my content-file:

… and here, when I have select an arrival + an approach at WIII:
… another one … no freezing, no CTD:
The same with the WSSS scenery - all STARs selectable:
So, I can´t see any issue here - the data are loaded correctly and the sceneries are also perfect, no issue found. Sorry, I can´t reproduce it and I don´t also see no issue with all these sceneries.
Used sim-version 1.21.18, latest Navigraph Navdata Center v1.0.5 version (running in the background):
Cheers,
Richard
PS: by the way - directly from the WT CJ4






