This doesn't happen often, but after ending calls on my end the phone does not hang up. We can still hear each other, and the Phone app stays on the "call ended" screen with the hung up icon still blinking, but indefinitely. Force closing doesn't work, clearing cache doesn't work.
I have to wait for the other caller to hang up, or restart my phone. Periodically it may eventually end. A few times I thought me switching my main call app worked a couple times...but who knows.
Sometimes even calling someone, the "trilling/ringing" doesn't stop even after they've answered. Happens for me and my Gf.
Update FIX: figured out almost a year later. If any of these issues occur, just open the Google Fi app it'll stop all these issues. Seems Google Fi doesn't mix right with Samsung, unless it's all types of phones.
I read somewhere about wifi being the problem. It is. It seems like the phone makes a wifi call and a network call at the same time. If you turn off WiFi the problem goes away.
