I've been having text message issues since upgrading to the iPhone 12 Pro too, on both iOS 14.1 and 14.2. I'm on Google Fi on an eSIM.
Not sure if I'm receiving all my one-on-one messages, but it's obvious in group chats with all Android users (besides me) or with a combination of Android and iPhone users, that I'm only getting some because I can't follow the conversations at all. And I confirmed there were missing messages with some of the group participants. iMessage seems fine.
Google Fi reps took me through all the troubleshooting steps I already did like 5 times, and nada. I've even done things they didn't recommend and still nothing. Still get like half of the group chat SMS and MMS texts. Told the Fi reps I talked to all to investigate further but I'm not sure they would send that up the chain or to the devs. Submitted bug report with Apple too.
I had experienced issues with not getting MMS on other iPhones using Fi, but that was all fixed once they finally updated their help pages to put 23456789 for the MMS size allotment in settings, something people were doing before Fi even recommended it because Fi was too slow to admit their settings recommendations needed fixed.
Not sure if I'm receiving all my one-on-one messages, but it's obvious in group chats with all Android users (besides me) or with a combination of Android and iPhone users, that I'm only getting some because I can't follow the conversations at all. And I confirmed there were missing messages with some of the group participants. iMessage seems fine.
Google Fi reps took me through all the troubleshooting steps I already did like 5 times, and nada. I've even done things they didn't recommend and still nothing. Still get like half of the group chat SMS and MMS texts. Told the Fi reps I talked to all to investigate further but I'm not sure they would send that up the chain or to the devs. Submitted bug report with Apple too.
I had experienced issues with not getting MMS on other iPhones using Fi, but that was all fixed once they finally updated their help pages to put 23456789 for the MMS size allotment in settings, something people were doing before Fi even recommended it because Fi was too slow to admit their settings recommendations needed fixed.