HI!
I found that the arc wall has a small bug. I used the Accessories library 22 to test it. When the wall is connected at a small angle, it does not work.If the two walls are disconnected, the arc wall will work properly.
I just checked it and it is the accessory that has the problem.
Slightly different geometry of the wall and there was no problem.
It seems to be just this particular angle that the wall meet at.
Barry.
One of the forum moderators. Versions 6.5 to 27 i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11