Artisan expectsOutput does not work with parallel testing

Hello guys, hope you do fine.

I have a very weird problem and I have not found any actual documentation around it, looking for, the last 3 hours.

$this->artisan('mycommand')
            ->expectsOutput('my random output')
            ->assertExitCode(0);

This will work when running my test as a regular one (without parallel), but it won't work when using php artisan test --parallel , even if i just filter the specific test.

I verified that the output is indeed what I expect, but test won't pass. I believe it has something to do specifically with the parallel execution but can't really get it. It fails with message:

Output "my random output" was not printed.

On my command I just have a regular info call

$this->info("my random output");

Any ideas please?