custom folders desktop apex launcher Help

[gnystrom]

I am trying to organize my desktop icons into folders on my S5 running Apex launcher. I used to lomg press the icon and drag it on top of another icon and I was good to go. Now when I try that, the two icon just switch places they will not combine.
What am I doing wrong?

 

[gnystrom]

I think I solved my own problem with a restart of Apex.