[Varstahl]

So, I wasn't here when the development started on these features, and it's a guess, but as noted on github (issue linked above) I think Amazon changed a bit the process of the login flow, which now is for the most part automatic. Which is a problem, because in the middle of the redirections (on average there's about 3-5 redirections when you login) there is information we need to register the device, but the process is just skipped. So it's working for people who already had Kodi and Amazon VOD running, since they didn't logout and features just work. This is my best guess atm.

I have theorised a possible solution, I just need to find time to implement and let you guys test it.