Big issues with the latest version [update]

A new update has been installed, but I dont know if the issue bellow has been solved or not. Ill keep until I can check it out. Meanwhile I increase stars to 4 from 2.

During my return trip from Surabaya to Paris sept 10 2015, I wasnt able to checkin from the app with message that it cannot be done because the coming flight is with a partner company. It is true and it was "SilkAir", SQ sister company. Fortunatey I was able to do my checkin via Singapore Airline website. Which for me also means a bug of the app.
And there was no possibility to get an e-boarding card.
It was a round trip Paris/Surabaya.
I had no problem for the trip from Paris to Surabaya.

Thank you

NightWalker about Singapore Airlines, v17.5