Crashes with rails

[KirbehStellar]

Describe the bug
Fushigi crashes when i try to save after creating a new rail (i think it only happened with custom levels that i made before and now i'm trying to edit again, because with 1-1 it doesn't happen) and no error log is generated

idk what's wrong with rails, but it started to crash fushigi for me in a lot of different ways, other crash was that... when the "Dynamic" nodes of the rail and its points generated on the course file , the level won't open again, and the only solution was to delete all the info on those nodes (i don't know if this one is fixed now)

this is the only thing i can show without the log