MirrorLink on Lollipop and Suzuki Vitara

Hey guys! So I'm (hopelessly) trying all the ways to make this work but simply can't. Both Xperia Z3 and the new Suzuki Vitara are MirrorLink 1.1 compliant, however, after successfully establishing the connection via the USB calbe to the car, the phone doesn't react to any attempts to launch the apps from the car's touchscreen even though it signals the connection as alive and shows the apps on the phone. Repeatedly tapping on one of the apps on the car's touchscreen brings the app up for a split of a second but then it simply closes.

Has any of you managed to connect to MirrorLink successfully, preferably in the exact same combination of the car and the phone?

Thanks a lot for any advice!

P. S.: Please no replies telling me to try a different USB cable and similar, been there, done that.