CS1545 error with specific COM object properties

Question

I am doing COM automation with a 3rd party library. When trying to access certain properties I need to use obj.get_Property() instead of obj.Property.

This seems to be happening only for properties of type string that have both a getter and a setter.

I would like to understand why C# can't handle these cases, and if there's anything I can do to address this.

Edit - Additional info:

• The automation target application ships with type libraries in .tlb format, which Visual Studio uses to produce interop libraries.
• The decompiled interop library of interest looks similar to this:

using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using NS0;

namespace NS1
{
    [ComImport]
    [Guid("AAAAAAAA-BBBB-CCCC-DDDD-000000000000")]
    [TypeLibType(1234)]
    public interface SpecialDocument : Document
    {
        //...
        [DispId(1234567890)]
        new string Name
        {
            [MethodImpl(MethodImplOptions.InternalCall)]
            [DispId(1234567890)]
            [return: MarshalAs(UnmanagedType.BStr)]
            get;
            [MethodImpl(MethodImplOptions.InternalCall)]
            [DispId(1234567890)]
            [param: In]
            [param: MarshalAs(UnmanagedType.BStr)]
            set;
        }
        //...
        [DispId(1234567891)]
        new string FullName
        {
            [MethodImpl(MethodImplOptions.InternalCall)]
            [DispId(1234567891)]
            [return: MarshalAs(UnmanagedType.BStr)]
            get;
        }
        //...
        [DispId(1234567892)]
        new bool IsVisible
        {
            [MethodImpl(MethodImplOptions.InternalCall)]
            [DispId(1234567892)]
            get;
            [MethodImpl(MethodImplOptions.InternalCall)]
            [DispId(1234567892)]
            [param: In]
            set;
        }
    }

• In the code snippet above, of the 3 properties defined, only Name must be accessed with get_Name or set_Name. The other properties get accessed as one would expect in C#.
• Both Name and FullName are inherited from the parent class Document, defined in NS0, where they have the same definition.
• According to the documentation, all automation interfaces for the product derive from IDispatch.

Edit - Adding repro steps:

0. Acquire a license for FancySoft and install the product.
1. Start a new .NET 4.8 console project in VS 2022.
2. Import COM reference.
3. In Main, connect to the running COM server with Marshal.GetActiveObject("FancySoft.Application");
4. Navigate to a SpecialDocument instance, and attempt to read the document's Name property.
5. CS1545

Edit - Additional info from the .TLB (extracted with oleview.exe):

// From "dispinterface Document":
[
  uuid(AAAAAAAA-BBBB-CCCC-DDDD-111111111111),
  helpcontext(0x00001111),
  dual
]
dispinterface Document {
    properties:
    methods:
        // ...
        [id(0x76543210), propget, helpcontext(0x00001234)]
        BSTR Name();
        [id(0x76543210), propput, helpcontext(0x00001234)]
        void Name([in] BSTR* rhs);
        // ...
};

// From "interface Document":
[
  odl,
  uuid(AAAAAAAA-BBBB-CCCC-DDDD-111111111111),
  helpcontext(0x00001111),
  dual,
  oleautomation
]
interface Document : BaseObject {
    // No member description for the 'Name' property.
};

// From "dispinterface BaseObject":
[
  uuid(AAAAAAAA-BBBB-CCCC-DDDD-222222222222),
  helpcontext(0x00002222),
  dual
]
dispinterface BaseObject {
    properties:
    methods:
        // ...
        [id(0x76543210), propget, helpcontext(0x00001234)]
        BSTR Name();
        [id(0x76543210), propput, helpcontext(0x00001234)]
        void Name([in] BSTR* rhs);
        // ...
};

// From "interface BaseObject":
[
  odl,
  uuid(AAAAAAAA-BBBB-CCCC-DDDD-222222222222),
  helpcontext(0x00002222),
  dual,
  oleautomation
]
interface BaseObject : BaseDispatch {
    // ...
    [id(0x76543210), propget, helpcontext(0x00001234)]
    HRESULT Name([out, retval] BSTR* oNameBSTR);
    [id(0x76543210), propput, helpcontext(0x00001234)]
    HRESULT Name([in] BSTR* oNameBSTR);
    // ...
};