Probelm with Spotify 8.5.16 (IOS) and BMW Apps

[chrimoe]

I have a BMW with CiC Navi Professional. Spotify with an iPhone 5 (IOS 10) via BMW Apps worked great until a few days ago. It will not work after updating the Spotify app. Other apps like TuneIn work. Spotify does not switch to this BMW mode anymore. Unfortunately, I do not know which version was installed before the update, now it is 8.5.16. Does somebody has any idea? Has the support of older BMW systems been discontinued or is there a bug in the current version?