Having same issue as other comments. Any other track pieces once link give you a green check on signal but when you connect anything to the round about no entry give a green check and if you can even get your train to enter it will stop like no rail is connected in the roundabout. Had this issue with another one so I download this one and same issue. Assuming its a bug with the game possibly.

yes its weird it snaps in fine but train wont enter thr roundabout

Anyone else having issues with the tracks not connecting correctly?