Update 1 has been released. It resolves 2 issues:
1. Level 2-4 had a bug with the portal not showing up
2. The level select screen would not take you to the right level
If you encounter anything else please let me know!
Update 1 Released
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.