I've played through most of the 363 run number 89505 on Hamburg Lübeck but I'm unable to complete the final step of coupling. There's no hit boxes to couple up between the dopplestock and the IC stock (sorry, my German coach knowledge isn't great). I've tried from both on foot and free cam with no luck. Has anyone been able to complete it? I find that getting to find the exact spot the game wants you to click for coupling to always been quite challenging. The hitbox could really do with being much bigger in size.
I tried crouching and every possible position but still no luck. Got the AI to do it in the end and took over the service just before it was completed. I managed to couple them up earlier on in the service just fine.