Using Qt 3D with QML. Seems like the uniform "skinningPalette" is not uploaded to the vertex shader when using the RHI backend. I found no reference to it in the source code for the RHI renderer (https://code.qt.io/cgit/qt/qt3d.git/tree/src/plugins/renderers/rhi/renderer/renderview.cpp#n1041), even though documentation online says this uniform should exist, and there's no mention of armature animations only being supported on OpenGL.