Hi,
When doing a simple scene with a plane and a dome light, I noted that Adaptive dome is on by default and when rendering the plane shows a pattern artifact (see image below). When the adaptive feature is turned off the problem is solved.
When doing a simple scene with a plane and a dome light, I noted that Adaptive dome is on by default and when rendering the plane shows a pattern artifact (see image below). When the adaptive feature is turned off the problem is solved.