I am experiencing this as well since upgrading to 5.1. It was fine in 5.0.x. It appears to affect planes. Anyone know what’s going on and how to remedy it?
Whether rendering as Apple Prores or JPG sequence, the artifacts occur. There are no changes in my process between 5.0.x and 5.1, but I can’t get a good render out of 5.1.
Thanks!