Are you playing on mobile or PC? If you're playing on mobile I did post a new version a few weeks back, if it's a fresh copy you downloaded recently do let me know as someone had the same issue and the latest mobile version seemingly fixed this problem!
I updated the game not really sure why the ship can't fly it works fine for me on both of my devices, I tried to make that area run better, if it doesn't work I just put a sign that lets you skip it since it's a small part of the update! You'll need to download the latest version I just uploaded now though!