Default Pie controll long press doesnt work

Hi.
I'm trying to disable the capacitive back and menu keys and use the pie controll mod. I have LMT launcher and it works for the most part.

However I assigned the longpress on each button to function as it would if id longpress the capacitive buttons, but it doesn't seem to work, for example long pressing the back key doesnt bring up the multiwindow controll, any ideas?

Im rooted and running phoenix rom 16.7