Here I go again. I watched a video about how to use and set-up 'Watch app for Tesla' app as a key on Tesla Y. I spent the $29.95 from Apple App store and followed the instructions. Doesn't work for me. All the controls work manually via my Apple Watch but it doesn't work as a key (like the phone). I have been over it many times trying to isolate where I've gone wrong but nothing. My watch is an Apple Watch Gen 5 and I've searched the web to try and find if it is a too early generation to be compatible but can't find anything. Is anyone using it successfully on an Apple watch and in particular a Gen 5 watch? If so can you help me out please.