should we just wait until the rc6 installer has been fixed? it sounds like something broke for max 2019, I am getting the nvidia optix error too.
No matter how much I uninstall or reinstall, the corona installer refuses to redownload the nvidia optix. and now no matter if I use RC6 of RC5 optix is broken.
also tried to manually download it, and install it using local file, this works but it's still the wrong version, 5.1.0 and not 5.1.2 which corona is looking for.