I also had issues with 9-24. Specifically, every time I opened Snapchat, BOOM! reboot. I could still receive notifications from it, and I reinstalled it, removed Keepchat from Xposed... nothing. Reverted to 9-18 for stability.
Also, anyone knows if LS dropped support for Split Screen? I remember using it in Stock 4.4.2 and I cannot recall if I did use it after clean flashing 9-11, but maybe I did. I tried to enable it today, and I looked everywhere in the settings, but I couldn't find anything, neither on the phone nor through research (long press on recent apps brings the menu without the "add to split view" option)