IOS Contact image is not loading after re-open the app


I’m developing an app where I have to get certain contacts and then save them to local storage.
I do everything well and it works really fine in Android, but I noticed that in IOS the image which the contact plugin retrieves is a temporary file just like this


So when I open the app again it does not load the image that I am using as a thumbnail.

As you can see bottom left image is just uploaded but bottom right image is the temporary file that can not be found because I re-open the application.

I will read any suggestion and thanks by the way