Bought GOG FO4 today so fresh install, downloaded and installed Folon from the launcher in Gog galaxy. When running Folon I get the pop up error box "Check if loose files enabled PRKF will NOT works properly". The game runs but is stuck looping the intro movie. Reinstall?

Win10

Go to your FalloutCustom.ini file and add the following lines:

[Archive]
bInvalidateOlderFiles=1
sResourceDataDirsFinal=

There is no FalloutCustom.ini* in the base game folder, There is Fallout_Default.ini which I could copy and rename?

*C:\Program Files (x86)\GOG Galaxy\Games\Fallout 4 GOTY

OIC in the documents folder, got it