Can’t upload photo from camera roll on iphone

I make my albums public so my users are allowed to upload photos to the albums. Sometime recently, the option to upload from the camera roll on the phone is no longer available. When the user clicks “Select Photo / Camera”, it opens the camera without the option of selecting a photo that has already been taken. Is there a new setting to allow this?

Thank you for the plugin – I love it!

Darlene