Can't text photos from iPhone to Android
I recently lost the ability to text photos to contacts who have Androids. It sometimes works after several tries, but by then the moment has passed. It happens all the time, and doesn't seem to matter what carrier the contact is on, WiFi calling enable/disabled, group text, private text, MMS/SMS, iMessage... The only commonality is that I can't send images to Androids, and sometimes can't even get a text-only message out on the first try. Thoughts?
iPhone 7 Plus, iOS 11.2.6, AT&T