1. It works normally in my city
2. It is true that a crime icon constantly appears, however I have noticed that the police do arrive, but it takes time to do so
3. This happened to me but with the days it stopped happening, I don't know if they updated or it was solved out of nowhere
4. I haven't noticed
5. The same thing happened to me, but I was able to solve it, I connected a platform to the outskirts of the city and another to the industrial zone, now both platforms work for me
1. Lots of people have confirmed this bug, you're the first one who says they haven't seen it. We're talking about the paths in the visualization overlay btw, not actual bike paths.
2.. If police happen to drive past by pure chance, they will clear the icon temporarily. If your road network is set up such that police frequently drive past the airport on their way to other buildings, it's possible they will clear the icon fairly regularly. You can also force police to visit the airport by looping 1-way streets so they're forced to drive past the airport. Of course having to design your city in such a way just to work around a bug is absurd.
3. It seems to depend on whether the park was built before the patch or after, among other things. It might not happen all the time, but it's enough to be game-breaking if you're trying to level up a park and you have to quit and reload the game.
4. Lots of other people have
5. Again, having to specially design your city to work around major bugs in the game is not acceptable. It's a city simulator, not a Bug Simulator.