After normal upgrading my Ubuntu, Amazon Prime Addon in Kodi suddenly stops working. There was no error-message shown in kodi at all, it just happens nothing after starting a movie.
After some log review i found an error in kodi.log under „~/.kodi/temp“ that says: „ERROR: Unable to load librtmp.so.1“
Thats the reason. Just install the package and enjoy again Amazon Prime movies.
sudo apt-get install librtmp1