Minor bug - Setting default runas gets removed

Product: PowerShell Universal
Version: 2.7.0

When setting Credentials to Default on a script either in the edit or the details page it reverts back to blank and prompts when running the script. If you set it to a vault account it saves it, this seems to just be around default.

Settings and then save
when i come back in to edit or the details page it is blank again.

Thank you,