AssetBundles and out of memory

So I have a very basic project with a button that just loads an asset bundle (the asset bundle is small, like 130k).

When press the button, the asset loads fine, and gets instantiated as a gameobject. I also have a kill button that destroys it. If I repeat the process, on the second or 3rd try, I get an out of memory error, which is strange because the memory shouldn't be growing.

I'm using bundle.Unload(true); after I instantiate the asset, which I thought should free up any memory the actual downloaded bundle was using, and Destroy(go) to get rid of the object.

Am I missing something? If I can load it once, shouldn't I be able to load it unlimited times?

 

I've had no luck getting the profiler working with WebGL with dev mode + auto connect profiler & firefox, sadly.

 

Consistently getting "Sending message header failed" when I try to build & run with auto profiler

 

I found this thread:
http://forum.unity3d.com/threads/io...ccumulation-only-recent-unity-version.243940/

The last response was to use:

Resources.UnloadUnsedAssets();

between bundle loads.

Sure enough, it worked for me with the WebGL exporter. Maybe the bug carried over?