REAL PAINT FX INSTALLATION fails.

Installed FX BOX
missing dialog box when real paint fx finishes installing - (brushes vs tools).
no errors, no warnings.
REAL PAINT FX runs only one step ( apply this effect > 2 layers created ), then halts.
tried all troubleshooting fixes from envato forum - reset warnings, disable GP, uninstall brushes, apps.
close / open PS
reinstall

Try contacting the author directly, they should be able to help you.