Pushing to Bitbucket stopped working over the past week or two.

[Deleted user]

Most of the time, I get this now. Not always: that's the really frustrating part. Ideas?

git -c diff.mnemonicprefix=false -c core.quotepath=false -c credential.helper=sourcetree push -v --tags Bitbucket refs/heads/develop:refs/heads/develop 

Pushing to [a bitbucket repo]

remote: Invalid username or password. If you log in via a third party service you must ensure you have an account password set in your account profile.

fatal: Authentication failed for [the Bitbucket repo]

Completed with errors, see above 

[Deleted user]

Frequency of the problem has decreased, to at least "not most of the time". Still have no idea how to fix it or how to get help; looking for where to report a bug seemed to point me here, but I've gotten no response.