I've been noticing lately that when Floor Plan Cut Plane changes are made to views, they don't take effect right away. You need to toggle something on and off again to "shock" it into working, as you say. We call that the "Hungarian Shuffle".
There's something wrong with the Rebuild function, in a few 3D operations. I've spent hours adjusting various settings, only to find that the first adjustment I made should have worked, and eventually does.
Chuck Kottka
Orcutt Winslow
Phoenix, Arizona, USA
ArchiCAD 25 (since 4.5)
Macbook Pro 15" Touchbar OSX 10.15 Core i7 2.9GHz/16GB RAM/Radeon Pro560 4GB