Mail app crashes when attaching pics to email

I Have to send lots of pics I take on my iPhone 6+ Showing the job performed. I used to go to the "photos" app before, select 20-40+ pics and copy them to the buffer, then going to mail app and pasting them. Right now mail app crashes after I just tap "paste". On iOS 7 it definitely worked no problem.

I Checked on my other iPhone with iOS 6 and it works no problem...

is this iOS 8 bug?