MaterialProperty for float4x4 did not send to shader

Unity Engine
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1

I suspect that it was because of this line

//// com.unity.rendering.hybrid@0.5.2-preview.4/Unity.Rendering.Hybrid/InstancedRenderMeshBatchGroup.cs:991

            for (int i = 0; i < numProperties; ++i)
            {
                var flags = shader.GetPropertyFlags(i);
                if (((uint)flags & (uint)ShaderPropertyFlags.HideInInspector) == 0) // <<< suspect code
                {

Because float4x4 cannot be exposed, it would be flagged as HideInInspector and so it would not get sent into shader

2

Yes, this is a thing. You’re about the 5th person I’ve seen on the forums notice and replicate this- unfortunately Unity refuses to document this bug.