I've noticed Max to seemingly overwrite my preferences randomly, so actually did dig through the "Customize User Interface" settings, but didn't think to check if Octane had its own group outside of "Main UI". Doh!
I'm running the latest version of Max (2018.4 Update).
I doubt I'll be able to get our IT dept. to install 4.44 today , but once it is installed, I'll let you know how it goes.
In the meantime, I'll just have to handle motion blur in post.
I recently discovered that "Octane Properties" is missing from my context menu when I right-click scene objects.
Any thoughts on why this might be happening, and how I can get it back? It's making it difficult to enable motion blur on a project I need to render today.