Buildings alignment bugs

The game overall is great but I am facing a serious issue. All my infrastructures have been disconnected from the roads.
Furthermore, what I would direly wish is to building bridges over my main drags in order to alleviate the traffic and the jams.
Thank you for your reply.

Daryl

You can press R and F on the keyboard to increase and decrease the road height to build bridges.

Buildings only connect to Gravel Roads and Concrete Roads. They wont connect to Highways.

Thank you for the tip Chieri regarding the bridges.
As far as roads connection is concerned though, all my factories have been cut off from the concrete roads (not the Highways) since the last update. Therefore, I think I’ll start a new game.