Unable to drag multiple photos from Adobe Bridge to Apple Photos

Hello,

When I try to drag Multiple photos from Adobe Bridge into Apple Photos, only one photo is added and I get the following messege:

"Cannot Import Item

This item cannot be added to your Photo library because it may be an unrecognizable file format or the file may not contain valid data."

I than have to drag one by one.

Any idea why?

All the photos are JPG.

Thank you,

Shlomit