Thank you for the tip - looks like I'll have to start again.. too many wasted rails!
I'm playing the Windows (10 - 64-bit) version using the itch.io app ... if there's anything else I can tell you that might help fix it feel free to contact me :)
Soo finally I just uploaded the new version with a lots of fixes, but the most important part is, how from now you will see easily how which side is connectable -> Big orange arrows showing them :D
