Hello Marcus,
I had just the same problem you have (or had) - I solved it by re-activating all underlying cubes, DSO, multicubes and aggregation levels.
The problem occured after a transport of objects from one BW system to another with a different patch level.. Obviously something had gone awry during the transport.
I used RDSG_CUBE_ACTIVATE and RSDG_MPRO_ACTIVATE and
RSPLS_ALVL_ACTIVATE in SE38.
I sincerely hope you either solved the problem by now or this helps you.
Kind regards, Thomas
I find awarding points rather nice.