Group Facetime XR
I just bought an Iphone XR in April 2019 and whenever I am facetiming someone and then try to add someone else to the facetime, it does not allow me to (the option is there but it won't let me press it), therefore I have to hang up on the person I am already facetiming and start with a group one from the beginning. Why is this occurring/how do i fix it so I can just add someone?
iPhone XR, iOS 12