Jack
This seems to have started yesterday around a specific time, I am looking in to it now.
Unfortunately I am still having issues with it Jack using Samsung Galaxy S7 Android 7.0. With my brand new account it gave me 2 parts and then would not give me any more, even though the blue bar is highlighted, I click it and nothing happens. I logged in with my original account and the blue bar was not highlighted so I rebooted my phone and then the blue bar is now highlighted, however it does absolutely nothing when I click the blue bar.
On a friends account using Samsung J7, it gave 3 parts and then even though the blue bar is highlighted, it no longer gives any more parts. Again, the blue bar is unresponsive.