Default [Q] 3rd Party M8 Call Notification App Issue

Hi All - I've recently being fooling around with apps like Floatify and Heads Up Notifications in order to have a more Android L feel to my notifications. I remember previously using Floatify on my old M7 and a call answer/decline would pop up when there was an incoming call. Heads Up Notifications is supposed to produce a similar pop up. I've disabled my lockscreen but no matter what settings I use, I still get the Sense call answer/decline screen on my M8. I'm in the process of checking with the devs but I'm wondering if anybody else has been encountering a similar issue. If so are there are any workarounds? I'm using Insertcoin rom. Thanks.