Working with FormZ 8.6.0 Build 10017 and Maxwell Render 184.108.40.206 on MacOS 10.13.3 High Sierra, I found the following irregularity:
A Sofbox Light is always visible to the camera, even if the responsible Paramenter are set accordingly.
For a better explanation are 2 screenshots attached.
Or what did I overlook ...?
Thank you for your understanding - or the support.