I paid my phone up and got note 7. No I have no issues
This answer is completely worthless and assumes people are posting this issue who don’t know to do all that. It’s a MAJOR BUG that is true on ANY iOS11 device - my iPad mini, iPad Pro, iPhone 7 and iPhone X ALL have this issue so it can’t be WiFi or something a mere hard close, reboot or reset can fix. It is a MAJOR flaw as you can’t send a picture and then send another without closing iMessage and waiting 30 seconds. This issue has been here since iOS 11 came out. I wonder if Apple iPhone engineers even USE an iPhone or they would easily discover this and other bugs just using the phone like normal. This worked fine in previous iOS versions so iOS 11 BROKE texting pictures, some people do a lot.
Please don’t give lame answers that blame the user - please fix the issue.
Much thanks.
Sorry note 8.
Powering down, then back up always clears the problem, yes. But it is neither a convenient nor effective solution. Very irritating actually. Software solution in works??
Try turning off live and Hd pictures. Also try turning on low image mode under settings>Messages>Low quality mode
iMessage freezing when sending pictures