It appears Wowza has now changed their policies for RTMP security features in the new v3.5 vs the prior version. They are encouraging you to go to user StreamLock with RTMPS vs RTMPE. If you still want to use RTMPE, you now need to apply to use an RTMPE AddOn to the server. I'm not sure they even will support that on EC2 devpay however.
I am an EC2 user of Wowza on the devpay license. My questions are:
1) If I used RTMPE on Wowza 3.1.2 EC2 AMI, and now want to upgrade to using Wowza 3.5 EC2 AMI, can I get a 3.5 EC2 AMI with the RTMPE AddOn activated?
2) Will Wowza 3.5 RTMPS Streamlock work with EC2 devpay licenses?