If I leave the phone call screen (keypad, mute, speaker on/off, etc) it is impossible to return to said screen
When I am in an active call, if I need to go to the home screen to reference a document or something, when I try to return to the Call Screen by pressing the Green Phone button in the top-left corner of the screen, my screen will instead go black, and then back on as if nothing happened, and this happens every time I click on the green button, so I'm unable to return to the Call screen. With this issue, I'm not able to input anything on the keypad bc I can't access it, can't turn speaker or mute on/off, and I cannot terminate the call myself. I saw some previous questions here on this site that were very similar in circumstance, but I didn't see any solutions, and so I ask anyone who may be able to help, please advise. I have the iPhone 12 and am current with the iOS updates afaik, if that's relevant. Please let me know if I can clarify anything further and have a great day ≈!
iPhone 12, iOS 17