Have added a manual button to a couple of remootio's over the last week or so and noticed the same thing.
You need to hold the button in for about half a second for it to register the action. I have used a no name brand button on one remootio and the official remootio button on the other and both behave the exact same way. It's no big deal but wondering if anyone has seen this and been able to get it to trigger on a momentary press of the button (like push it ol in and let it go straight away).
The other issue I have is that the response from the gate (on both) is somewhat delayed. I could use the phone app or even the gate remote and it was pretty much instant (phone does need to be Bluetooth for obvious reasons). This is a bit of an issue as the only way to pin the gate of one of these devices open permanently is to hit it when the gate starts to close (the other one you can trigger that function whether the gate is opening or closing).
Minor things but wondering if anyone here has seen it and resolved it? #home