I have reserved the sandbox but when i click on the link https://fmcrestapisandbox.cisco.comit returns below error Request Entity Too Large The requested resource does not allow request data with GET requests, or the amount of data provided in the re...

We’re encountering the same issue on the newer 7.6 release with 12xx firewalls. Has anyone identified the root cause or received any insights from Cisco? Thanks in advance.