Hi, I've been using my PC for a few weeks but I finally got round to loading the new plugin version 2020.2.5.1 on my Macintosh.
I loaded a big scene with several complex models and then tested it with IPR and no problem. Then I tried F9 and all I got was the background environment image! Octane didn't load the objects at all. Same for F10 rendering.
I went into Octane config and turned off multi-thread scene extraction and then both F9 & F10 worked fine. Obviously loading the scene for rendering took longer than it did on my PC but it's not too big a problem. Hope you can fix it when you get a chance.
--Hal