Can't export multiple files to external editor

[Derek21850085y14f]

I am running Mac OS 13.0.1 and can't export more than 1 file at a time with Lightroom CLassic 12.0.1. When I select say ten files to exprt at once it only sends the first photo selected. 

[SeanMcCormack]

This definitely sounds like a reset preferences issue. In the General tab of Preferences, hold down Option to reveal the 'Reset all preferences and relaunch' button.