Background of OPALVision Demo Game King of Karate does not scroll

[MacGyver4B]

The demo game has a 24 Bit deep background consisting out of two pictures e.g. France: House1.dat and House2.dat when you move the player over the middle the background is supposed to scroll to the right part House2. in WinUAE 5300 at least the background is static.

https://amiga.resource.cx/install/OpalVision-10-KingOfKarate1.dms https://amiga.resource.cx/install/OpalVision-10-KingOfKarate2.dms

I guess this dev docs are known http://aminet.net/driver/video/devdocs.lha The game does not seem to use the library or has it statically linked.

For installation the Opalvision Software is needed as some files named *.iff (actually jpg inside) get decrunched to *.dat by Convert24.