If you receive an error message stating that Studio One+ is not in your account, please make sure that you have updated to the latest version of Studio One. You can then go into Studio One in the menu bar of the program and sign out of your account. Finally, re-launch Studio One and sign in using the correct account. If you still have an issue, please follow the instructions below, to manually remove any PreSonus credentials from your computer.
Mac: Launch "Keychain Access" application from the "Utilities" folder and delete the "Presonus_UserAccount" keychain as well as the "PreSonus_StudioOne_OAuth" keychain.
Windows 10 Users will find a screen that looks like the image below. (Open the Control Panel and do a search for "Credential Manager")
1. Select the Windows Credentials section.
2. Find the entry for "PreSonus_UserAccount" as well as "PreSonus_StudioOne_OAuth" and click the little downward arrow to open up the credential.
3. Click "Remove" to delete the credential.
Launch Studio One again. You will be prompted to log in with your credentials.
Login with your MyPreSonus Username or Email address and your Password.
Be sure to select "Remember My Credentials" and click Login to continue.
If you don't check the "Remember My Credentials" check box, you'll need to login each time you access this menu. This is a matter of preference.