Top of Wall not removed by roof (possible Bug)

Hello,

I am really struggeling with the bit of the wall (which would be the automatically generated roof of the room if I didn't add a tilted roof). It just won't dissapear. I downloaded the 11.1 Version to try loading with forcing the geometry reload, but that didn't work for this part (it did fix other problems with entire Walls sticking through the roof tho.)

I also tried letting the tilted roof stick out of the wall, but that only fixes it if the entire eave edge (is that right for "Traufkante" from german?) is outside of the outer wall. The roof is supposed to be flush to the wall, so that would change the optics of the model extremly. (second screenshot)

Does anyone have a similar problem or know a possible different solution to my futile tries?

Thank you for any help in advance!

Greetings Martin

Edit: It sees to be something with how the roof removes objects. It seems to only remove objects correctly when the inner start of the slope is above them. This is always the case with a eave edge ("Traufkante") of 90°. But in my case this is really annoying and extensive to do. But with the edge beeing 0° it seems to be not calculating correctly. I think this is a bug, that could be fixed.

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