Git for Windows is giving authentication error when trying to clone/pull/push etc to Bitbucket. Cygwin and Linux based systems with Git have no problems.
I have Bitbucket v5.9.1 running in our Dev environment with Git 2.16.1 and the problem occurs on HTTP and HTTPS.
I also have Bitbucket v5.0.1 with Git 2.13.0 in our production environment and that has no problems when using Git for Windows to authenticate.
I'm having a hard time trying to narrow down the cause of the problem.