Using Request Factory is not populated when retrieving the expected data

[longestdrive]

HI
I'm trying to use a request factory in my test but it's started to generate strange results in recent tests - fairly certain I havent changed anything to create the change but:
using version 3.3.0 and Laravel 10.48

In my test I'm creating a factory request as follows:

public function testCreate()
    {
        $request = CreateRoundRequest::factory()->create([
            'league_id' => $this->league->id,
            'player_id' => $this->player->id,
            'handicap' => $this->faker->numberBetween(0, 28),
            'round_date' => '20/05/2020',
            'score' => $this->getScores(),
            'temporary_green' => [],
            'league_type' => 'eclectic',
            'course_id' => 1,
        ]);
      
        dd($request->all());

        $response = $this->storeGolfRound->create($request);

        $this->assertCount(18, $response);
    }

When I use the Request methods to retrieve data it's always empty - in this case I get the error error: Call to a member function all() on array when I run the test - note I'm adding the dd method simply to test it's created.

If I debug in PHPstorm I can see it's generated an array - but was expecting a request instance - what am I doing wrong or have I misunderstood the package?