DatabaseTransactions Test fails on CI many times. Using Paratest for the suite

class TestWorkingProperlyTest extends TestCase
{
    use DatabaseTransactions, WithFaker;

    public function test_step_1()
    {
        $user = (new UserFactory())->create();
        $user->email = '[email protected]';
        $user->save();

        $this->assertModelExists($user);
    }

    public function test_step_2()
    {
        $user = User::query()
            ->whereEmail('[email protected]')
            ->first();

        $this->assertNull($user);
    }
}

Hello guys, give me your lights please.

I have this POC test on our tests that fails at random times on the CI (github actions & jenkins, has happened to both of them).

Since using DatabaseTransactions trait, this should never fail, but it looks like something goes wrong at random times.

We run the suite using Paratest & Laravel version is 10. (phpunit)

vendor/bin/paratest --coverage-clover coverage.xml --log-junit test-report.xml

Shouldn't Paratest handle these things creating individual database per process? Also we have some random deadlocks some times, I am pretty sure it's because of Paratest but don't know why.

Anyone has any idea on that?