There is an issue with the new iPhone 12's possibly caused by the iPhone 12, or iOS 14.1, or a combo of both. Not 100% sure yet.
I first read about this issue when Paul Thurrot gave his thoughts on his new iPhone 12:
I wasn’t expecting to write more about the iPhone 12 ahead of my review, but there are several issues that I feel require more discussion.
www.thurrott.com
He writes:
I thought that since he is always switching from Android to iMessage, this was his problem.
But I just upgraded to an iPhone 12 (coming from an iPhone 11 Max Pro), and I am in a group message with my kids. One of my kids is an Android user. Last night he came up to me and asked me why I didn't reply to his two text messages he sent to the group. I checked my iPhone, and I didn't receive any text messages from him in the group chat. He then showed me his phone, and sure enough, he had sent them to the group.
Something is wrong regarding iPhone 12 and/or iOS 14.1 users not receiving SMS texts when they are part of a group chat with a mix of iMessage and Android users.
Anyone else experienced this problem?