It’s been almost a year since I created a post with these problems, today I mounted it again removing only one of the Dual R3, if I had read this post before I would have saved the work.
Everything remains the same, only it has changed that now the engine stays energized for 2 minutes, when it came out it stayed 24 hours a day.
Everything else remains the same, it does not respond to the pulses, if I raise the blind and I want it to lower it a little it does not, I have to press several times and it stops going down, you do not know if it will respond or not to the pulses.
It makes no sense that something that is wired does not work when pressing, it is as if the wired button sends the signal to Hawaii and returns to respond 
Why haven’t they solved this in a year?
Do the same as in the dual R3 I just want to have everything zigbee, use the same firmware and everything is fine.
Another problem, if I’m going to install it in the app I find it I change the name the calibration poster comes out and zas! The device doesn’t exist, I look and it’s blinking, incredible.
Like this over and over again until it worked.
An hour later, the lower temperature scene is activated outside the street, open the blind and it doesn’t work!
I go to the app and it doesn’t exist!
The LED flashing
I’ve already removed it, thank goodness I didn’t change them all.
I don’t understand why they don’t fix any device even if it doesn’t have a connection, it responds to pulses.
This one doesn’t!
When the blind is opened or closed, it stays running for 2 minutes! Unbelievable, what is the calibration for if it’s going to be in motion for two minutes 
It doesn’t matter if you do it manually or automatically, it doesn’t pay attention to you, it will keep the blind running for 2 more minutes!
The day a final race fails, it will destroy the blind, keep that in mind.
All this does not happen with the Dual R3, once calibrated the person stays in motion for 1 second or 2 seconds, like all the ones I have used, it is calibrated perfectly.
I don’t know why after a year they have only changed the time from 24 hours a day to 2 minutes, why didn’t they put only 1 second?
I repeat it doesn’t make any sense, I read that a Sonoff technician said it was so that it was calibrated, I have the Dual R3 for many years, I never calibrated them again!
Just by opening the blind 100% once, it does it every day at dusk or dawn depending on whether it is summer or winter, so it continues perfect years, it always stops at the same distance, either if I ask Alexa 50% or 20% always in the same place it stops.
The pulsations are instant, it does not disconnect.
Please fix it, I’m calm because I returned them all and this time I only bought one, I’ll keep it and I’ll try it again next year 
it’s for fun I’m sorry.