I was running a train on Kickstarter2 and notice one of the tunnels is "Blocked". It looks like the entrance is full of stones but the train runs through it just fine. The other tunnel had a normal entrance. I notice the same thing on a couple of philskene's layouts. It doesn't appear to affect how the trains run. Just wondering if there was a purpose for this? I was running with an external forward view and when the train entered the tunnel it switched to a rear looking view then switched back to a forward view. Why? Sort of a first-world problem, but just curious why the app would care which direction I am looking.