Version 1.6.24 not resolving BitBucket passwords

When pulling from BitBucket repository, I am being prompted for my password, which SourceTree thinks is incorrect. I have tried this on two machines with .24 and one with .23 using the same login process. This prompt continues even when I have a private SSH key set. From what I can tell, the issue is with SourceTree and not BitBucket, though this is based solely on the previous version working properly, with the same settings, on my other machine.

Tested on Windows 7, 8.1, and 10. None seem to resolve passwords.