'Sourcetree Update broke authentication

I just updated from SourceTree 3.4.6 to 3.4.8 (Win 10) and now I can't access the remote repositories. Any operation results in this msg:

git -c diff.mnemonicprefix=false -c core.quotepath=false --no-optional-locks fetch --prune --tags origin
Server refused public-key signature despite accepting key!
FATAL ERROR: No supported authentication methods available (server sent: publickey)
fatal: Could not read from remote repository.

Luckily, I also have the GitExtensions tool installed, and it can still access my repos. Why does updating SourceTree break my access?



Solution 1:[1]

After 3 days, and several reboots it spontaneously started working again, with no changes to any settings. So I have no clue as to why it wasn't working.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 CasaDelGato