Cannot access feature title and description from CustomAction

[kamillo]

I'm trying to access some information about features from C# CustomAction code. I'm using session.Features accessor to get FeatureInfo object for the existing feature in the msi. I can get FeatureInfo.Name without error but accessing FeatureInfo.Title or FeatureInfo.Description throws an exception with following message - The handle is invalid.
I'm not sure if I'm missing something or doing something wrong or it's just a bug.
I'm using wix v4.0.1.

I would appreciate any help you could provide.

Please find minimal working example that can be used to reproduce the issue:

test.wixproj file:

<Project Sdk="WixToolset.Sdk/4.0.1">
  <ItemGroup>
    <ProjectReference Include="CustomActions.csproj" />
  </ItemGroup>
</Project>

test.wxs file:

<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
  <Package Name="Test" Manufacturer="Test" Version="1.0.0" UpgradeCode="{C91D82EE-8BDD-4615-8165-4538781D4E0D}" >
    <MajorUpgrade AllowSameVersionUpgrades="yes" DowngradeErrorMessage="Unable to downgrade" />
    <MediaTemplate EmbedCab="yes" />

    <StandardDirectory Id="ProgramFilesFolder">
        <Directory Id="INSTALLFOLDER" Name="Test" />
    </StandardDirectory>

    <Binary Id="CustomActions" SourceFile="$(var.CustomActions.TargetDir)\$(var.CustomActions.TargetName).CA.dll" />
    <CustomAction Id="FeatureTest" Impersonate="no" BinaryRef="CustomActions" DllEntry="FeatureTest" Return="check" />

    <InstallExecuteSequence>
      <Custom Action="FeatureTest" Before="InstallFiles" />
    </InstallExecuteSequence>

    <Feature Id="MainFeature" Title="Test" Level="1" Description="Test desc" >
        <Component Id="TestComponent" Directory="INSTALLFOLDER">
            <File Id="TestFile" Source="test.txt" />
        </Component>
    </Feature>
  </Package>
</Wix>

CustomAction.csproj file

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net472</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <Content Include="CustomAction.config" CopyToOutputDirectory="PreserveNewest" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="WixToolset.Dtf.CustomAction" Version="4.0.1" />
    <PackageReference Include="WixToolset.Dtf.WindowsInstaller" Version="4.0.1" />
  </ItemGroup>
</Project>

CustomActions.cs file:

using System;
using System.Collections.Generic;
using WixToolset.Dtf.WindowsInstaller;

namespace WixCustomActions {
    public class CustomActions {
        [CustomAction]
        public static ActionResult FeatureTest(Session session) {
            session.Log("Begin FeatureTest");

            var feature = session.Features["MainFeature"];

            try {
                session.Log("Name: {0}", feature.Name);
            } catch (InstallerException ex) {
                session.Log("FeatureTest, unable to get name, exception: {0}", ex.Message);
            }

            try {
                session.Log("Title: {0}", feature.Title);
            } catch (InstallerException ex) {
                session.Log("FeatureTest, unable to get title, exception: {0}", ex.Message);
            }

            try {
                session.Log("Description: {0}", feature.Description);
            } catch (InstallerException ex) {
                session.Log("FeatureTest unable to get description, exception: {0}", ex.Message);
            }

            return ActionResult.Success;
        }
    }
}

Logged output messages:

Calling custom action CustomActions!WixCustomActions.CustomActions.FeatureTest
Begin FeatureTest
Name: MainFeature
FeatureTest, unable to get title, exception: The handle is invalid.
FeatureTest unable to get description, exception: The handle is invalid.
Action ended 12:33:31: FeatureTest. Return value 1.