Hello!
Today I had similar issue. I put my scenes cameras to C4D Render queue. One picture was good, but the other was totaly black. I've rendered it again in VFB with the same result. Without bloom and glare the black screen disappeared, but there is some black squares in the image.
I've tried to render it without denoising, there is no black squares. When I've checked VFB with right click there is nan on mapped RGB.
Cinema 4D Studio R18, OSX 10.13, Corona A.6