I have a LG K 7 and up till a couple of days ago have had no problems switching from front facing camera to selfie or rear facing camera. All of a sudden I wasn't able to switch to selfie but there was still a camera icon at top of screen but it just stayed front camera. Last night the camera was there and now today no camera icon at all. I can take a front facing picture by just tapping the screen anywhere but not selfie. Does anyone else have this problem or know how to get it back to normal?