I had the same thing with my Odroid N2 and just FYI covering the IR receiver (in my case I simply turned my Odroid to face a wall though I imagine duct tape over the IR receiver would work as well) also solves the problem of double inputs if you’re looking for a simple solution.
Thanks for the help, the command for disable the IR receiver worked (would be great to see the working IR receiver), but the orginal problem is still there.
The original problem is that when I start a recursive playback in photos, the tvbox is not responding to the remote keys. I thinked it was about the double key, but with single keys happen too. The only way to resolv is to enter by ssh and reboot.