AssetBundle LoadAllAssetsAsync freeze Unity Editor 5.3.3p2 (64-bit).

I want to load AssetBundle content in background load.

To do this i use LoadAllAssetsAsync() (http://docs.unity3d.com/ScriptReference/AssetBundle.LoadAllAssetsAsync.html) and works fine on StandaloneWindows and Android builds.

But in Editor, when AssetBundle is running LoadAllAssetsAsync() if i sellect or try to expand some GameObject in Hierarchy Window, i got freeze until LoadAllAssetsAsync() finish. And i get same problem when i try to check, change or move some value in Inspector. Also with script way: when i change a UI.Text font.

This freeze is only on Editor and while LoadAllAssetsAsync() is running, but i would like to know how to fix it.

Someone else happens this problem?

Thanks in advance.

Updated 17/03/2016: Tried and get freeze in 5.3.1f1, 5.3.2f1, 5.3.3p1, 5.3.3p2, 5.3.3p3 and 5.3.4f1.