"Nothing to Undo" prompt
@AiralynRose, how did you report your issue with the screen staying on to Apple? This issue of the prompt of "nothing to undo" is a major software issue that needs on the top of the list of things to address on Apple's updates. I've had my phone only 3 days and I've had this issue seemingly naturally occur dozens of times already. It happens when my phone is locked, and even when I haven't been texting anything and have all apps. closed. I believe shaking can cause I've usually gotten the prompt after it's been in my pocket. I've tried nearly every combination of hitting buttons to experiment if that could be the cause but I have never been able to purposefuly cause the prompt that way. Regardless of how it's caused, it's annoying and a way to stop it needs to be found.