There is a bug preventing sending photos via text, both to single and group recipients with the default Message app. The failure error occurs when attaching either a pre-existing photo or taking a photo from within the app itself (from the left ‘+’ menu). The error message is ‘Failed to send. Tap try again.’ I’ve verified that the APN settings are correct.
When I use a different app - Simple SMS Messenger - photos are able to be sent to either an individual or a group. Note: after successfully texting a photo with Simple SMS, and then switching back to the default Message app, the sent photos are displayed normally in the Message app history/thread (as if they were sent normally with Message).
Experienced on 1.11-s
Moto One 5G Ace