DNG Export Ipad Pro 2020 without Flags and Star-Rating when Import to LR Classic

Hi, 

i'm new in using LR CC on my new ipad Pro 2020.

Case: DMG Pictures imported from SD Card/LEICA M9  on Ipad directly in LR CC/Ipad

Editing and rating DNGS on the ipad Pro.

Then Export as DNG'S to External SSD.

Then Import with LR Classig on Macbook Pro. 

Problem: The Editing is embedded but not the Ratings/Stars!!!! Why?

And is ist possible to export the images in Original Size with Editings? When i export them as Originals then there is no information about edditing when i want to import them to LR Classic on my MacbookPro.

Thanks für caring

Tomy