This problem has been going on for over a month and I've confirmed that it's with the Remote Voice Pro and not the boxes by pairing it with both of my Ultras.
In a span of an hour, it seems to "Listen" for a command even though the hands-free switch is disabled and the mic button isn't pushed. At times it acts like it's repeatedly pushed and I have to wait each time for it to error out.
I've already had it swapped out with another Roku Voice Pro and I'm getting the same result. So I can only assume it's one of the following:
1. I have two defective devices.
2. The current remote firmware is causing it to glitch out.
Can't confirm the firmware obviously because I don't know how to roll it back.
Anyone else experience this?