iPhone 4 OS 7.1.2 doesn't turn off after notification
After I receive a text, email notification or missed phone call, the notification screen usually turns off after a few seconds. It's gotten to where about 40% of the time it just stays on until I manually hit the On/Off button. At first I thought it was because the phone was plugged up but it's also happening when it is unplugged.
Anyone else having this issue or know of a fix?