cannot see all iphone photos on my iMac
I just went to type out an email on my iMac using the Apple Mail software and i wanted to attach some photos from the photos app on the mac. But when attempting to choose the photos i wanted to attach, i noticed that some of the photos, which i had taken on my iPhone X was not showing in photos. The strange thing is though is that some photos from my iPhone shows but not all of them. I was just wondering if i am missing something in settings?
I am using 27" iMac running macOSMojave Version 10.14. My iphone is the iPhone X running IOS 12. The iCloud settings i am using on my mac can be seen below.
Thank you for any help that is offered.
iMac, OS X Mavericks (10.9.1)