[OBD U10] Wall opening cuts Compound Slab

Hello,

I'm having an issue with compound slabs and (wall) openings. Let me sketch the situation:

There is a wall starting at Z=0. The (compound) slab also starts at the same position and makes an "indentation" into where the door opening must be. So there is a partial overlap between the wall and the slab below the actual door opening:

In order to make a cut into the wall at this position (so that there is no longer an overlap with the CS), I create an opening with the same width dimension as the door opening and the height dimension equal to the slab thickness:

With the old slabs, this would be it. It worked.

In the new CS however, this opening also cuts the slab. And not only for the thickness of the wall, but even for the entire length of the slab:

This is not an issue when the wall and door are placed on top of the slab. But when it comes to architectural finishing, that's not always the case of course ...

Any tips how to solve this? Is this a bug or intended behaviour?

Test Door vs Slab.dgn

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