Window Manager Problem

This worked for me! I was going crazy, the tabs wouldn't close! I went under developer options and "do not keep activities" was checked. I unchecked it and problem solved! I have a Samsung galaxy note 4, Thank you UrHookUp!! You saved my day! Or a ton of my time anyway
 
Go to settings> developer options>apps> don't keep activities.

Developer Options - scroll to the bottom uncheck the the first box under apps

Hope you find this useful!
 
Go to settings> developer options>apps> don't keep activities.

Developer Options - scroll to the bottom uncheck the the first box under apps

Hope you find this useful!

did this and was able to again close all my tabs open. crazy crap.