Thank you for the quick reply Kevin.
Maybe it's both, I have two monitors and I've changed the UI default layout to take advantage of the second monitor, I was using the Root template and the Resource Manager on the second monitor if that matter.
Yesterday I was trying to find out what could've caused the crash and I've created a new level with just some empty layers (A, B and C with 3 more sets of layers inside) on the world outliner, plane terrain, and a probe light, and I was able to reproduce the issue. I'm pretty sure that I was using the dual monitor layout.
I'm trying to isolate the problem.
I'm somewhat sure that I have the "DockPanel.config" file. I'll check that when I got home.
I will try your methods and see If it'll work.
Thanks again.