Unable to run test collections in parallel.

[quldude]

I have the following in my xunit runner json file:

{
  "$schema": "https://xunit.net/schema/current/xunit.runner.schema.json",
  "diagnosticMessages": true,
  "maxParallelThreads": -1,
  "internalDiagnosticMessages": true
}

My csproj file:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>

    <IsPackable>false</IsPackable>
  </PropertyGroup>

  <ItemGroup>
    <Compile Remove="Source\**" />
    <EmbeddedResource Remove="Source\**" />
    <None Remove="Source\**" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.0" />
    <PackageReference Include="Microsoft.Playwright" Version="1.28.0" />
    <PackageReference Include="xunit" Version="2.4.2" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <PackageReference Include="coverlet.collector" Version="3.2.0">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
  </ItemGroup>

  <ItemGroup>
    <None Update="xunit.runner.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
  </ItemGroup>

  <ItemGroup>
    <PackageReference Update="Microsoft.VisualStudio.SlnGen" Version="9.2.2">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
  </ItemGroup>

</Project>

My cpu details (ubuntu os):

Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   48 bits physical, 48 bits virtual
CPU(s):                          32
On-line CPU(s) list:             0-31
Thread(s) per core:              2
Core(s) per socket:              16
Socket(s):                       1
NUMA node(s):                    2
Vendor ID:                       AuthenticAMD
CPU family:                      25
Model:                           1
Model name:                      AMD EPYC 7763 64-Core Processor

I'm getting the following error when running command dotnet test Sample.E2E.Tests.dll --logger "console;verbosity=detailed":

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.
/app/Sample.E2E.Tests.dll
[xUnit.net 00:00:00.00] xUnit.net VSTest Adapter v2.4.5+1caef2f33e (64-bit .NET 6.0.11)
[xUnit.net 00:00:01.58]   Discovering: Sample.E2E.Tests (method display = ClassAndMethod, method display options = None)
[xUnit.net 00:00:01.69] Sample.E2E.Tests: Discovered [execution] test case 'Sample.E2E.Tests.Test.Web.Samples.MSFSuite.MSFPageTestAsync' (ID = 'e277b6a48e7a39b05ec75b3d19e5056fc23a48ed')
[xUnit.net 00:00:01.69] Sample.E2E.Tests: Discovered [execution] test case 'Sample.E2E.Tests.Test.Web.Samples.MSFSuite2.MSFPageTestAsync' (ID = 'a0d27301410892aa5ccaf89a2e25445d9f18ebf1')
[xUnit.net 00:00:01.70]   Discovered:  Sample.E2E.Tests (found 2 test cases)
[xUnit.net 00:00:01.71]   Starting:    Sample.E2E.Tests (parallel test collections = on, max threads = unlimited)
The active test run was aborted. Reason: Test host process crashed

Test Run Aborted with error System.Exception: One or more errors occurred.
---> System.Exception: Unable to read beyond the end of the stream.
at System.IO.BinaryReader.Read7BitEncodedInt()
at System.IO.BinaryReader.ReadString()
at Microsoft.VisualStudio.TestPlatform.CommunicationUtilities.LengthPrefixCommunicationChannel.NotifyDataAvailable()
at Microsoft.VisualStudio.TestPlatform.CommunicationUtilities.TcpClientExtensions.MessageLoopAsync(TcpClient client, ICommunicationChannel channel, Action`1 errorHandler, CancellationToken cancellationToken)
--- End of inner exception stack trace ---.

Eg test method:

public MSFSuite(ITestOutputHelper output) {...}

[Fact]
public async Task MSFPageTestAsync() {...}

Could someone help me figure out why I can't run the 2 tests in parallel? I'm able to run single test.

[quldude]

Ignore this. This issue happens since the tests are using playwright.