funk wrote: Right. You can make your own emitters manually, if you know your light is behind some glass (this still won't match modo reflections/refractions though).
We just have no way to do this automatically

Thank you for your answer.
In this case you should do it manually.

cubic: I looked into this. Unfortunately, Octane doesnt have a way to hide emitters ONLY through refractions (transparency) like modo does.

To funk
thank you for investigating.

My explanation was insufficient.
You can solve the problem displayed by adding "Create Octane Emitter" to the area ...

When glass is present, the area light is displayed.

Shadows fall when the area light is near the ceiling. This is fixed in the next release (thanks to Funk who found a sneaky solution). The next release also supports rendering area/point/photometry lights created after the Viewport was opened (ie. no scene refresh required).

Thanks Paul!
Thanks ...

Shadows fall when the area light is near the ceiling.