When you do your testing is the AVR changing inputs?

I also notice the the AVR is set for IR and other devices are set for RF. Not knowing how you have the system setup this could be the problem. You are also using the front blaster. Is there a reason you are not using emmitters?

Your macro does not have a power on for the DVD and the Roku. Try inserting a home command to wake up the Roku and a play stop command for the DVD to power on.

Dave