Wow honestly this is mind blowing! The park area with several altitude changes looks like a blast! It's fun to experience weight loss or compression, I guess for me it's because Lithuania's Nemūnas Ring takes this quite to an extreme.
He didn't have any problems earlier but he got a new PC so this is with fresh LFS (version U), then we tried with a copy from his old computer, finally we tried with U13 and we got this error in all cases. Any ideas?