Adding Xiaomi door sensor

I got 2 of the Xiaomi Aquara door sensors from Gearbest and after 4 hours of trying to integrate it with the Smartthings hub, I am about to call it quits.

I tried the reset, the catchall method and anything I could find on the internet. After adding the device using the catchall method, my ST Motion sensor is becoming unavailable, I am not sure if its pure coincidence or I screwed up something.

I have tried the method mentioned in below topic

Any help/guidance is sincerely appreciated.