possible bug black bar when you re enter app lollipop 5

if you look at the screenshot at the bottom the bar which holds the bottom 3 android buttons the black bar stays there.

it only happens in android lollipop when you hit the apps button (task manager)

the steps are… enter the app > go to homescreen > open task manager > enter app through task manager. I figure it’s either a bug or there is some code i need to put in to fix this?

Are you using 5.0f4 version? This bug was fixed in 5.0 patch 1. Please update to the latest version available.