When using plink as ssh agent in sourcetree under windows to pull code from Linux servers that has Yubikey configured, it just fails to popup yubikey authentication form, so I have no chance to click my yubikey and the pull fails directly.
Is there anyway to enable the popup authentication form for yubikey ?
As I mentioned in "How do I get my Yubikey to work with SSH in Windows 10?", do not use plink (check also your environment variable for any GIT_SSH variable: you should remove them)
Use the openSSH paackage with Git, and use the latest Git (2.33.0.2).
You can test it with a sk file, as in here (that was for GitHub, but should work with a remote Linux)
