From manual testers: On Windows

List will return error -The specified version is not valid: ""

• If installed 3.0.0 or 3.1.0 ASP.Net Core Runtime separately.
• If installed 3.0.0-rc1 or 3.1.0-preview x .Net Core Runtime separately

Notes:

• There is no ASP.Net Core Runtime installer for Mac, so this issue is not occurred on Mac.
• If installed 3.0.0-rc1 or 3.1.0-preview x .Net Core Runtime separately for Mac, it is not repro on Mac.