I installed new update 3.3.4 yesterday and since then i have authentication problems, when i try to pull/fetch etc. I removed all credentials from sourcetree, but i can't add a new one at Tools-Options-Authentication, because there is no option for my companies Git in a DropDown. After each pull/fetch etc. request from Terminal i need to enter my login and password. I won't be saved.
So, I solved the problem by installing Git for Windows and using System, instead of Embedded Git in Source Tree.
I also have tried to update embedded git first, but all my tries ended up with error after extracting, so that embedded git was broken.