You guys must be new here
This plugin hasn't seen any development since 2014 and by development I mean something being added that didn't come free from Octane standalone updates. Since 2014 the plugin has been on life support, we've only had recompiles to the newest version of Octane standalone (and sometimes that took many months), some bug fixes here and there and features removed because they were to hard to fix, it's been pathetic. I stopped reporting bugs because the standard method of fixes them is/was just to remove the feature, I'd rather have a partly working feature than no feature at all.
The only reason I'm still here is because I use other plugins, although that might not be a case for much longer, I'll be evaluating that shortly, as I use Redshift and Renderman as well and Otoys over promising, super slow delivery and inability to keep to a timeline is becoming a meme. You'll notice they promised 2 major updates a year to Octane standalone, but for the last 3-4 years haven't even managed one major update in a year sometimes.
Don't get your hopes up that anything will change, because I highly doubt it will. At one point I thought things might get better once Otoy took development in-house, but they've actually gotten worse.
This plugin is "as is" don't expect any further changes.