Wrong Decompilation: catch (object obj) when (obj is System.Exception) for VB exception

[superstrom]

I am trying to decompile a VB.Net dll. I do not know what compiler produced it. Some methods with exceptions decompile cleanly, but some try to catch object instead of Exception. I cannot provide the original dll, but I have included an example of IL that fails. (only function names and strings have been changed from the original)

Input code

Please provide the input that failed to decompile.
If providing IL code as input, please provide enough context to allow us to re-assemble the IL.
If uploading a complete assembly, please mention which method failed to decompile.

  .method assembly hidebysig instance void 
          VBFunction(object 'value') cil managed
  {
    // Code size       114 (0x72)
    .maxstack  5
        .locals init (
            [0] int32,
            [1] int32,
            [2] class TestClass
        )

    .try
    {
      IL_0000:  call void [Microsoft.VisualBasic]Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectError()
      IL_0005:  ldc.i4.2
      IL_0006:  stloc.0
      IL_0007:  ldarg.0
      IL_0008:  stloc.2
      IL_0009:  ldloca.s 2
      IL_000b:  ldarg.1
      IL_000c:  call void TestClass::Func(class TestClass&, object)
      IL_0011:  br.s       IL_0026

      IL_0013: ldstr "VBFunction"
      IL_0014: ldc.i4.0
      IL_0015: ldstr "Exception"
      IL_0016: ldnull
      IL_0017: ldc.i4.0
      IL_0018: call int32 TestClass::ShowMessage(string, int32, string, object, int32)
      IL_0019: pop

      IL_0026:  leave.s    IL_0069

      IL_0028: ldc.i4.m1
      IL_0029: stloc.1
      IL_002a: ldloc.0
      IL_002b: switch (IL_003c, IL_003c, IL_0013)

      IL_003c:  leave.s    IL_005e

    }  // end .try
    filter
    {
      IL_003e:  isinst [mscorlib]System.Exception
      IL_0043:  ldnull
      IL_0044:  cgt.un
      IL_0046:  ldloc.0
      IL_0047:  ldc.i4.0
      IL_0048:  cgt.un
      IL_004a:  and
      IL_004b:  ldloc.1
      IL_004c:  ldc.i4.0
      IL_004d:  ceq
      IL_004f:  and
      IL_0050:  endfilter
    }  // end filter
    {
      IL_0052:  castclass [mscorlib]System.Exception
      IL_0057:  call void [Microsoft.VisualBasic]Microsoft.VisualBasic.CompilerServices.ProjectData::SetProjectError(class [mscorlib]System.Exception)
      IL_005c:  leave.s IL_0028
    } // end handler

    IL_005e:  ldc.i4 -214628237
    IL_0063:  call class [mscorlib]System.Exception [Microsoft.VisualBasic]Microsoft.VisualBasic.CompilerServices.ProjectData::CreateProjectError(int32)
    IL_0068:  throw

    IL_0069:  ldloc.1
    IL_006a:  brfalse.s  IL_0071

    IL_006c:  call void [Microsoft.VisualBasic]Microsoft.VisualBasic.CompilerServices.ProjectData::ClearProjectData()

    IL_0071:  ret
  } // end of method TestClass::VBFunction

Erroneous output

			catch (object obj) when (obj is Exception && num2 != 0 && num == 0)
			{
				ProjectData.SetProjectError((Exception)obj);
				try0000_dispatch = 40;
				continue;
			}

I would have expected

			catch (Exception obj) when (num2 != 0 && num == 0)
			{
				ProjectData.SetProjectError(obj);
				try0000_dispatch = 40;
				continue;
			}

Details

ILSpyCmd 8.2 and 9.1