Import of old photos not working

Hello, I'm a big fan of Locus but now I have an issue with showing gps-tagged photos in Locus Maps.

I've used Locus Map Classic 3.70 for the last several years on my Pixel 7a and I've taken many photos during hikes from within Locus to show them on the map.

I've just received my new Pixel 9 Pro, installed Locus and copied all of these previously taken photos into the folder "/storage/emulated/0/Android/media/menion.android.locus/media/photos/" on the Pixel 9 Pro. I had hoped that these photos then show up on the map again automatically, but I cannot see them.

I thought this is the correct folder for such photos. What do I need to do in order to show old gps-tagged photos in my new installation of Locus Maps?

Thanks a lot for your help in advance!