Some photos import to iMac Photos, others won't
Running High Sierra on my iMac
Have saved an SD full of photos to my Mac & Photos randomly imports some while not others
I moved the nonimportable photos to another folder & about 2/3 imported, the rest allegedly can't be read.
However I can open ever photo in the folder so what's wrong with Photos that it won't import some
Also how can I transfer photos from an older version of iPhoto - would have been Snow Leopard - saved to an external HD, to the new High Sierra Photos
Thank you for your support
iMac, OS X 10.11