Preserve the save and identify where warp fails
If Main Sequence crashes when you warp into an asteroid field, keep your existing save and note the destination and game build. In the Steam discussion about the demo warp crash, the developer suggested that loading older saves in newer builds could contribute and said an update should address the issue. Players also reported crashes on newer saves, so the save's age alone is an incomplete diagnosis.
Use a fresh save as a separate test
If you can reproduce the trip in a separate save, compare the result without deleting or overwriting your original. Check whether the failure happens as warp starts, during the animation, or as you reach a destination. A repeatable crash at one field is a more useful clue than a report that warp fails somewhere.
The developer also recommended starting a new save for the Early Access release to see the latest content. Treat that recommendation as guidance for launch and keep any old save you still want to use.
Report the exact failure
Include the game version, when the save was created, the destination, and the error text if one appears. Mention whether the crash happens in solo play, co-op, or both if you have tried them. If an update arrives, check its release notes before treating the issue as resolved.
FAQ
Will a fresh save always stop the crash?
A fresh save helps test whether save age plays a role. Players reported a similar crash on newer saves.
Should I delete my demo save?
Keep it intact. Create a separate save if you want to compare how a new game behaves.
Is this the same as a ship stuck in the warp animation?
A frozen animation and a crash to desktop are different symptoms. Include which one occurred in your report.