Context menu does't work on mac os

On Mac OS right clicking on a library opens the context menu which autocloses after a few milliseconds.
Is impossible to sync or unsync a library.

I’ve created an issue on GitHub with a video attached: Context window not opening · Issue #1695 · haiwen/seafile-client · GitHub

As a temporary workaround, can someone tell me how to enable the sync from command line?

Regards,