I'm on the stock kitkat 4.4.2 that I personally deknoxed and debloated. I have xposed framework and just a couple modules installed for it (gravity box, app settings, and keepchat) Everything is the same as it was on my phone when I had 4.3 app wise.
The first symptom I notice is that tapping the power button wont make the screen go to sleep. Holding it still brings up the power menu.
The first time it did this it also wouldnt connect to wifi and ate battery like crazy.
Used the flash zip to disable xposed and dirty flashed the rom. This fixed the wifi but not the power button.
Ended up totally flashing back to stock 4.4.2 with Odin and redoing everything. Downloaded pretty much all the apps from the app store and only used titanium backup to restore data on a couple things.
Everything worked fine ~3 weeks. Today it stopped working again. All the same symptoms. Absolutely nothing was changed between when it was working and when it stopped. All I did was reboot because I wanted to run speedtest from a clean boot. (comparing sprint 4G with verizon 4G at a friends)
Went to disable xposed straight from the app and it said it couldnt because I didnt have root. Downloaded rootchecker and it agreed that I did not have root.
Suddenly it started working again. Passed root checker and all. Then a couple minutes later it stopped again.
Downloaded towelroot and re-rooted with it. Everything seems to be back to normal for now.
Any ideas? Theories? Investigative follow up questions?