I was facing the same issue as well and will share how it went.
The problem: was due to irregular parameters for page and pageSize in Headers.
For some reason, the irregular setup of these two led to Postman displaying there are 18 parameters in the Header.
The fix: after deleting those two parameters from the headers, the count of Header params became 8, all of them hidden and the request worked.
The (probable) cause of the issue: the fact I was using vs code Postman extension when I first created the request, and when working on that request in Postman, it received those invalid params in the Headers.
Trivia: after I applied ‘the fix’ it works even with SSL certificate verification checkbox turned On in Postman settings.