Crash when changing shadow scalability settings to low, then clicking in the viewport

A crash occurs after setting the shadow scalabilty settings to "low" then clicking on an item in the viewport. The issue also occurs when setting all of the scalabilty settings to low at one time as well. Crash does not occur when selecting medium shadows.

Seen on AMD and Nvidia cards.

1. Open and project in the editor.
2. Set the shadow scalability settings to low from the Settings menu in the editor toolbar.
3. Click within the viewport

Result:
Observe a crash as the scene in the viewport is clicked

[2016.06.09-22.27.44:665][643]LogWindows:Error: === Critical error: ===
[2016.06.09-22.27.44:665][643]LogWindows:Error:
[2016.06.09-22.27.44:665][643]LogWindows:Error: Fatal error: [Link Removed] [Line: 717]
[2016.06.09-22.27.44:665][643]LogWindows:Error: Rendering thread exception:
[2016.06.09-22.27.44:665][643]LogWindows:Error: Assertion failed: 0 [Link Removed] [Line: 2627]
[2016.06.09-22.27.44:665][643]LogWindows:Error:
[2016.06.09-22.27.44:665][643]LogWindows:Error:
[2016.06.09-22.27.44:665][643]LogWindows:Error:
[2016.06.09-22.27.44:665][643]LogWindows:Error: KERNELBASE.dll
[2016.06.09-22.27.44:665][643]LogWindows:Error: UE4Editor-Core.dll!FOutputDeviceWindowsError::Serialize() [d:\main\main_stream\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:103]
[2016.06.09-22.27.44:665][643]LogWindows:Error: UE4Editor-Core.dll!FOutputDevice::Logf__VA() [d:\main\main_stream\engine\source\runtime\core\private\misc\outputdevice.cpp:86]
[2016.06.09-22.27.44:665][643]LogWindows:Error: UE4Editor-Core.dll!FDebug::AssertFailed() [d:\main\main_stream\engine\source\runtime\core\private\misc\outputdevice.cpp:405]
[2016.06.09-22.27.44:665][643]LogWindows:Error: UE4Editor-Renderer.dll!FProjectedShadowInfo::RenderProjection() [d:\main\main_stream\engine\source\runtime\renderer\private\shadowrendering.cpp:2627]
[2016.06.09-22.27.44:665][643]LogWindows:Error: UE4Editor-Renderer.dll!FSceneRenderer::RenderProjections() [d:\main\main_stream\engine\source\runtime\renderer\private\shadowrendering.cpp:3193]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Renderer.dll!FDeferredShadingSceneRenderer::RenderProjectedShadows() [d:\main\main_stream\engine\source\runtime\renderer\private\shadowrendering.cpp:3744]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Renderer.dll!FDeferredShadingSceneRenderer::RenderLights() [d:\main\main_stream\engine\source\runtime\renderer\private\lightrendering.cpp:603]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Renderer.dll!FDeferredShadingSceneRenderer::Render() [d:\main\main_stream\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:1307]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Renderer.dll!RenderViewFamily_RenderThread() [d:\main\main_stream\engine\source\runtime\renderer\private\scenerendering.cpp:2013]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Renderer.dll!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`20'::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\main\main_stream\engine\source\runtime\core\public\async\taskgraphinterfaces.h:999]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksNamedThread() [d:\main\main_stream\engine\source\runtime\core\private\async\taskgraph.cpp:932]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksUntilQuit() [d:\main\main_stream\engine\source\runtime\core\private\async\taskgraph.cpp:679]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-RenderCore.dll!RenderingThreadMain() [d:\main\main_stream\engine\source\runtime\rendercore\private\renderingthread.cpp:319]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-RenderCore.dll!FRenderingThread::Run() [d:\main\main_stream\engine\source\runtime\rendercore\private\renderingthread.cpp:440]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Core.dll!FRunnableThreadWin::Run() [d:\main\main_stream\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]
[2016.06.09-22.27.44:666][643]LogWindows:Error: UE4Editor-Core.dll!FRunnableThreadWin::GuardedRun() [d:\main\main_stream\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:31]
[2016.06.09-22.27.44:666][643]LogWindows:Error: kernel32.dll
[2016.06.09-22.27.44:666][643]LogWindows:Error: ntdll.dll
[2016.06.09-22.27.44:667][643]LogWindows:Error: ntdll.dll