Hello,
Miscellaneous investigations have been done so far. Inside and outside of Make. Seems like it’s not directly related to Make, but to the region the call is made from and to.
For instance, from Make, in Europe, we could call a AWS lambda in the us-west-2.
But calls are blocked if made from Netherlands with Postman.
May you tell me where your lambda function is deployed? It could help find out if there is a specific location that blocks calls made from Europe data centers.
In the meantime, can you open a ticket to AWS and see if they made any change in their policy that could block calls from certain locations?
Thanks and regards,
Benjamin