Branches are no longer fetched with my remote

I'm using Sourcetree for Windows (11) 3.4.8.0. However, about a week ago, all remote branches disappeared from the main view. A Fetch fails to retrieve them. The config file for the remote repo has:

[remote "origin"]
    fetch = +refs/heads/:refs/remotes/origin/

Yet it will not show the remote branches on the UI. I can manually, via terminal, check out a branch, or check it out via the Checkout command (Shift + Ctrl + U) but I have always been able to simply double click the remote branch name in the UI to do the same thing. I tried uninstalling and reinstalling SourceTree and the problem persists.