April 2024. Still happening.

Never mind. With Shader Validation and a Debug build, I was able to track down the problem to the following code: #ifdef USE_POINT_RENDERING _geometry.pointSize = scn_pointSize.x; #endif I had converted a geometry in a particular .scn file to "Point Cloud", and this was somehow causing this problem. Removing the offending geometry from the file solved it for me.

In a SceneKit project, I'm seeing the same errors repeated in the console as well as a black screen where my scene should be. The problem happens at a predictable point in the flow of the app (I can trigger it intentionally by navigating to a certain point). However, when I enable "Shader Validation" in my scheme's Diagnostics tab, the problem does not occur. Do you know why this might be the case? Thank you.

Thank you. I'll try Support if no one here provides an answer/link to an answer.