After completing the quest of the alien lady, if you want to travel to the castle with her, the game crushes every single time.
Viewing post in Report bugs and issues here!
Thanks for the bug report! I’ll have a look at what’s going on here.
If you still want to get to the castle I believe you can go talk to Lin the scientist and get her Ghostlight item to see invisible things - then if you take the path just under the castle you should see ghost platforms you can use.