It may seem silly, but let's go over a quick primer so you get the most out of this forum, whether you're asking a question or posting a bug.
First off what is the WRONG way to post a question/issue. For example "I press render and nothing happened!! What is the issue?" Well, there's not much to go on to help you there.
When posting a bug, or issue, or question, here's a few hints.
Here's a good example of a bug report:
OS: OSX 10.13.4
Software: Blender 2.79b
ProRender version: 1.6.159 (from the about section)
Issue: Black spots in Render of BMW scene when rendering with CPU only (see attached render)
(See scene attached)
Also, remember Radeon ProRender is free software, we will address any questions or bugs as quickly as possible, and community help is appreciated!