Strange thing: I need two attempts to import all the photos

Hi,

With my Leica M11 I often have to do twice the Import process to import all the pictures, whenever from the SD card or directly from the camera.

No duplicates or things like that, just regular pictures which are not "seen" in the first import process but ok at the second attempt with the exact same import options.

Interestingly, I don't have this issue with an Olympus body.

Any ideas?

Thanks!