I noticed that the new default season to start out in has been turned into 'Autumn', instead of 'Autumn or Spring'. However, despite this, it is still possible to start out in 'Spring', despite the customization screen saying 'Autumn'. I created several worlds in a row (10), and the starting season was always Spring. Custom presets, however, still work. On all my tests, I specified that I wanted to start out in RoG, while I also made the world Shipwrecked compatible when the screen prompt came up.
Steps to Reproduce
Start a default world spawn, and make it start out in RoG and make it Shipwrecked compatible.
This issue has not been confirmed by a developer yet.