Material Viewer ignores HiQ, always LoQ

Fusion version:
8.0 build 16
OS and version:
Windows 8.1
Additional relevant system info:
K6000 347.88
Description of the bug:
Material Viewer ignores HiQ, always LoQ.
Severity (Trivial, Minor, Major, Critical)
Minor
Steps to reproduce:
Load or create medium frequency image. Input to SphereMap. Set Spheremap OpenGL LowQ to Nearest, HiQ to Anisotropic. View SphereMap. Enable/disable comp HiQ. Result is always Nearest.
Please, if possible, provide a Fusion setup to help demonstrate the behaviour, either as an attachment or between code tags:

Code: Select all

{
   Tools = ordered() {
      Shape3D1_28 = Shape3D {
         CtrlWZoom = false,
         Inputs = {
            ["SurfacePlaneInputs.ObjectID.ObjectID"] = Input { Value = 1, },
            ["Transform3DOp.Rotate.Y"] = Input { Value = 90, },
            ["Transform3DOp.Rotate.Z"] = Input { Value = 90, },
            Shape = Input { Value = FuID { "SurfaceIcoInputs", }, },
            MaterialInput = Input {
               SourceOp = "SphereMap1_1",
               Source = "MaterialOutput",
            },
            ["MtlStdInputs.MaterialID"] = Input { Value = 1, },
            ["SurfaceIcoInputs.SubdivisionLevel"] = Input { Value = 20, },
            ["SurfaceIcoInputs.ObjectID.ObjectID"] = Input { Value = 2, },
         },
         ViewInfo = OperatorInfo { Pos = { 4180, -511.5, }, },
      },
      SphereMap1_1 = SphereMap {
         Inputs = {
            Rotation = Input { Value = 1, },
            ["FilterMode.Nest"] = Input { Value = 1, },
            ["FilterMode.GL.LowQ"] = Input { Value = FuID { "Nearest", }, },
            ["FilterMode.GL.HiQ"] = Input { Value = FuID { "Trilinear", }, },
            Image = Input {
               SourceOp = "Plasma2",
               Source = "Output",
            },
            MaterialID = Input { Value = 14, },
         },
         ViewInfo = OperatorInfo { Pos = { 4070, -511.5, }, },
      },
      Plasma2 = Plasma {
         CtrlWZoom = false,
         Inputs = {
            Width = Input { Value = 512, },
            Height = Input { Value = 512, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2", }, },
         },
         ViewInfo = OperatorInfo { Pos = { 3960, -511.5, }, },
      },
   },
}