So this one is super low priority if you ask me but nonetheless, I wanted to report it.
If you've been running Octane and its Nvidia AI Denoiser and you've then closed the scene but not Cinema 4D, if you run Corona afterwards it will automatically crash when trying to run it in IR mode with Nvidia AI denoising.
The solution is that once you've stopped using Octane, you need to close Cinema 4D and then start it back up. Once you do that, Corona IR denoising will work fine without crashing.
Hope it makes sense :)