Whenever I activate denoising in cycles and render with GPU everything works fine, but in the end the denoising results in black tiles and a completely black image. When I render with CPU it renders fine and denoising works great. I tried different settings but without success.
I’m using an iMac 27 late 2014 with a AMD Radeon R9 M295X 4GB, as far as I could research this card is supported by Blender for OpenCL rendering. It is also chosen in the preferences.
I made a simple test file with the standard cube:
denoise_black.blend (488 KB)
Thank you for your attention!