Unable to start ssh-agent.exe during SourceTree startup

After a fresh install of SourceTree 1.6.23, the first time it is executed, I get a pop up message saying that it was unable to execute ssh-agent.exe (see attached screen shot).

Note that ssh-agent.exe it was trying to launch was 'C:\Users\Ed Solis\AppData\Local\Atlassian\SourceTree\git_local\bin\ssh-agent.exe' but upon checking this directory, there where no such executable. However, upon checking further, that executable was found under 'C:\Users\Ed Solis\AppData\Local\Atlassian\SourceTree\git_local\usr\bin' directory.

How do I tell SourceTree to look for ssh-agent.exe under ...\git_local\usr\bin instead of ...\git_local\bin ?