I’m not sure what solved this to be honest but I haven’t had this issue in about a week. In case anyone sees this I’ll outline what I did below
- Attempted this thread’s solutions to a separate credential manager related issue
- Uninstalled sourcetree
- Renamed folder AppData\Local\Atlassian\SourceTree to something else, anything should work
- Reinstalled and followed git course up to needing to select a manager
- Selected wincred, might need to select one more time in case of another pop up