Filtering issue with SphereMap

Fusion version:
8.0 build 16
OS and version:
Windows 8.1
Additional relevant system info:
K6000 347.88
Description of the bug:
Unfiltered line visible for SphereMap though middle of texture when OGL filter is Trilinear or Anisotropic. Line is in fragments, not texels.
Severity (Trivial, Minor, Major, Critical)
Major
Steps to reproduce:
Set Spheremap filter mode in OGL to trilinear or anisotropic
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() {
      SphereMap1_1 = SphereMap {
         CtrlWZoom = false,
         Inputs = {
            Rotation = Input { Value = 1, },
            ["FilterMode.Nest"] = Input { Value = 1, },
            ["FilterMode.GL.LowQ"] = Input { Value = FuID { "Trilinear", }, },
            ["FilterMode.GL.HiQ"] = Input { Value = FuID { "SAT", }, },
            Image = Input {
               SourceOp = "Plasma2",
               Source = "Output",
            },
            MaterialID = Input { Value = 14, },
         },
         ViewInfo = OperatorInfo { Pos = { 4070, -511.5, }, },
      },
      Plasma2 = Plasma {
         Inputs = {
            Width = Input { Value = 64, },
            Height = Input { Value = 64, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2", }, },
         },
         ViewInfo = OperatorInfo { Pos = { 3960, -511.5, }, },
      },
      Shape3D1_28 = Shape3D {
         Inputs = {
            ["Transform3DOp.Rotate.Y"] = Input { Value = 90, },
            ["Transform3DOp.Rotate.Z"] = Input { Value = 90, },
            MaterialInput = Input {
               SourceOp = "SphereMap1_1",
               Source = "MaterialOutput",
            },
            ["MtlStdInputs.MaterialID"] = Input { Value = 1, },
            ["SurfaceIcoInputs.SubdivisionLevel"] = Input { Value = 20, },
            ["SurfaceIcoInputs.ObjectID.ObjectID"] = Input { Value = 2, },
            ["SurfacePlaneInputs.ObjectID.ObjectID"] = Input { Value = 1, },
            ["SurfaceTorusInputs.ObjectID.ObjectID"] = Input { Value = 4, },
            ["SurfaceCubeInputs.ObjectID.ObjectID"] = Input { Value = 3, },
         },
         ViewInfo = OperatorInfo { Pos = { 4180, -511.5, }, },
      },
   },
}