There was an error with probably most users where the program said you had the wrong .NET Core version. Don't worry! The program was already using .NET Core. This is just a new version which I did not realize was needed for this build. The redistributable is now included with the software and should be installed/checked if installed at startup. If you still have issues, run the redistributable in the 3rdPartyInstallers folder in the install directory and try again.
Apologies for any inconvenience this may have caused in your creativity!
Hotfix 1.0.1: Redistributable Issue
Source: Steam Community (opens in a new tab)