Export Issue

Google translation of error message: "Some export operations were not performed. An unknown error has occurred."

A number of people here have reported that resetting preferences fixes this issue:

https://www.lightroomqueen.com/articles-page/how-do-i-reset-lightrooms-preferences/

LR sometimes soils its preferences file, and resetting it can fix all sorts of wonky behavior. That article explains how to restore the old preferences if resetting doesn't help.

If resetting preferences doesn't help, then do these steps:

1. Post a screenshot showing all the settings in the Export window.

2. In Library, select the problem photo, do the menu command Metadata > Save Metadata To File, and attach the photo to your reply here.