for the US Region.
While monitoring the service after the upgrade, we discovered an internal system limit that reduces the permitted length of request line. A small number of infrequent GET requests greater than 16KB to the JS SDK and Adjust APIs were rejected with a client error. To prevent additional impact, we are restoring the original load balancer to service.
We are investigating the customers affected by this. We will reach out the affected customers once we finish investigating the impact of the change.