Scaler 2 has been updated to 2.0.8. It seems to load correctly now and is no longer blacklisted in to Cubase.
But they should change the name as it not seem to scale the right way on a 4k monitor.

A lot of plugins suck there, like waves (older versions?). I get really fed-up with all this updating all the time.
A thing that works all of a sudden doesn't anymore after an update. AND TH WINNER IS: WINDOWS !

So i am still curious if anyone found a way to use Scaler 2 with BIAB or RB. The chording sequences coming out of it sound quite good.