Trouble sending pictures over iMessage

i have an issue sending pictures in the built in messages app.

IF I take a screenshot or a new picture or sometime an existing picture the app not quite crashes it just won't respond .

It take a while for the app to crash and then restart sometimes the whole phone restarts itself. i have gotten replacement of the phone 3 times but it seems like it's an software issue.

iv have tried with a brand new phone(not back up) and with back up so its not a setting that's making it.

i Think the bugs are stalking me!

Please tell ell me someone else have experie this. And if an developer see this I Hope you can fix it!