According to Lego Studio, the connection on the right (stud in the center hole of the 4x2 pointed wedge plate) is valid. There is not even a stability or clutch power warning. However, in reality this hole is not complete as it intersects with the edge of the wedge, as it can be seen when zooming in. A stud cannot fit in there. As a consequence, my newest MOC is not buildable and I have to return to the virtual drawing board. I have submitted a bug report, hopefully they will fix the issue in...