On November 12th Apple released Safari 14.0.1 for macOS Mojave. It appears something with this update broke the ability for Safari to properly open up a file browser to select a file to upload to web applications like ours or to attach files in Gmail.

This issue seems to be limited to those users still on macOS Mojave. Until Apple fixes this issue we are recommending all users of Mojave access the Libsyn dashboard using Chrome or Firefox instead.