Apparently the problems posted here have been acknowledged: Android 4.4.3 update causing bugs with a multitude of Nexus devices | TalkAndroid.com
It's ironic that 4.4.3 was released primarily as a bug fix for 4.4.2, but not only did it not fix the bugs, it apparently introduced new problems. On my HTC One I'm still running the original Jelly Bean that it came with because it is problem free. It is fast, smooth and gets great battery life. I used the Nexus 7 as a guinea pig upgrading to Kit Kat to see how it was and all I've had are problems. The N7 was great with Jelly Bean, but with KK I've had screen responsiveness issues and very, very poor battery life. I may just root and go back to JB until Google can get its act together.
It's ironic that 4.4.3 was released primarily as a bug fix for 4.4.2, but not only did it not fix the bugs, it apparently introduced new problems. On my HTC One I'm still running the original Jelly Bean that it came with because it is problem free. It is fast, smooth and gets great battery life. I used the Nexus 7 as a guinea pig upgrading to Kit Kat to see how it was and all I've had are problems. The N7 was great with Jelly Bean, but with KK I've had screen responsiveness issues and very, very poor battery life. I may just root and go back to JB until Google can get its act together.