I think this started to happen after the last update. But when I try to attach images to text messages it is extremely slow to attach. The send button does a "loading" animation that can take awhile or not work at all. I thought maybe it was the SD card, but changing that out causes the same problem. And it doesn't happen to all pictures. Some of the older ones load up nearly instantly. Sometimes trying to attach an images from Gallery might even cause my phone to go bonkers with the phone now saying the SD card is corrupt. However, just restarting the phone then the SD card is fine again. Also, restarting the phone seems to clear this up temporarily. One last thing, I reset my phone to default: same problem.
This would be much easier to show in person, but nothing is open! Lol