I have 2 iPhones. One is 4G. The other is 5G. After updating both to IOS 17.1.2 today, the text alert tone no longer sounds on receipt of a text message.
After a lot of trial and error, it seems the problem is only when both phones have iMessage turned on. If either phone has iMessage turned off, then the alert tone sounds.
Any one else having this weird problem or am I just jinxed?