I just updated my project to Unity 2022 LTS. I started getting errors in the OvrAvatarPrimitive class around vertex buffer size miss-matches. I added a line to that class setting the vertex buffer parameters one more time right before the line that would give me the error which fixed my issues:
//added this - the bug as that the mesh vertex buffer did not match the size of the data being set in the next code line
mesh.SetVertexBufferParams(vertexBuffer.vertexCount, vertexBuffer.vertexLayout.ToArray());
//
// Upload vertex data to the mesh.
mesh.SetVertexBufferData(vertexBuffer.vertices, 0, 0,
vertexBuffer.vertexCount * vertexBuffer.vertexStride, VF_STREAM_ID);
mesh.UploadMeshData(true);
Could be an isolated/project specific issue, but I thought I'd share if someone else is having problem.
