Cyanogen 10.1 (m2) on the Galaxy S3 (SCH-I535)

I have been happily running various flavors of cyanogenmod for years now on a variety of devices. I picked CM because it is close enough to stock had a reputation for a good mix of speedy releases and stability. However, I have recently run up against an annoying bug. After about 24 hours, all the screen and hardware touches are interpreted as long touches. So hitting the home button brings up the task switcher, in my case, rather than taking you to the home screen. Even screen touches are seen as long presses rather than taps. A restart fixes the problem immediately, for about 24 hours. I generally run the monthly releases, and, and the bug hasn't been fixed in the any of these releases.

Does anyone have a fix for this bug or a ROM that is more stable.