Laravel HTTP Facade returning 500 while working in Tinker

Question

Tested as described in this Stack post: Not working on Laravel Controller, Working on Tinker

The original is a very simple CURL request:

curl -H "Authorization: Bearer 1G5bv.m*******"
     -H "Content-Type: application/json"
     -X POST https://testdashboard.com/api/reporting/314****/6912****/submit/202314*****

I used the Laravel Http facade (also tried native PHP curl with same result). With a var_dump before the URL is exact, and the token is correct.

$response = Http::withHeaders([
    'Authorization' => 'Bearer '.$this->auth_data['token'],
    'Content-Type' => 'application/json'
])->post($url);

However, when using the above HTTP in tinker, it works, inside my Laravel job I get a 500 error from the server. I have reached out to the server devs, pending response