Keyboard stucks in lock screen on my Galaxy S5 If I use the keyboard in a texting app or somewhere and the screen locked automatically, keyboard stucks at the lockscreen and it looks really weird.

This is a screenshot of what is happening on my phone. Does anyone know the reason for this? My Device is Samsung Galaxy S5 with Lollipop update.
My buddy had the same problem and the only thing we could do to fix it was to install another keyboard like SwiftKey, Google keyboard, and etc. It seems that its a known issue and will have to wait for Samsung to fix it.

Edit, I know this isn't a -fix- but at least its a workaround to get you through the day, Short of having to reboot the phone.