Beatscape invisible and crashing (only) in Sonar8?

For some reason Beatscape doesn't show up with Sonar8 on my computer. Session Drummer 2 is exactly in the same sub-directory as Beatscape and is visible when i want to insert a track.

If i try to insert a Beatscape track with the predefined track template Sonar8 shows a VisualC++ assertion dialog (Assertion failed! / Program: ... / File: ..\Synth\SynthUtils.cpp / Line: 424 / Expression: -1 ==iErr). Sonar8 dies immediately after confirming that dialog.

Weird enough Beatscape works fine in Live7 and Canatbile! So on my computer it seems that Beatscape is happily working with every DAW but doesn't like Sonar8 ...

Anyone having the same problem and a workaround (and yes, i have checked the VST directories and did reset the VST info and did a rescan and did a reinstall of everything and uninstalled my Sonar7 and cleaned up any remaining directories and i even contacted support)?

Thanks

Eric