What steps will reproduce the problem?
1.
- Discovered error during general troubleshooting.

What is the expected output? What do you see instead? - no in-game error other than "action blocked."  

What version of the product are you using? Version 2.2

Do you have an error log of what happened? - see taint log below.

Please provide any additional information below.

Here's my taint log from in-game:
11/1 11:48:34.004  Global variable info tainted by !BugGrabber - Interface\FrameXML\VoiceChat.lua:261 initFunction()
11/1 11:48:34.004      Interface\FrameXML\UIDropDownMenu.lua:51 UIDropDownMenu_Initialize()
11/1 11:48:34.004      MiniMapVoiceChatFrame:OnEvent()
11/1 11:48:34.004  Execution tainted by !BugGrabber while reading info - Interface\FrameXML\VoiceChat.lua:280 initFunction()
11/1 11:48:34.004      Interface\FrameXML\UIDropDownMenu.lua:51 UIDropDownMenu_Initialize()
11/1 11:48:34.004      MiniMapVoiceChatFrame:OnEvent()
11/1 11:48:34.004  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:48:34.004      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:48:34.004      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:48:34.004      LFGParentFrame:OnEvent()
11/1 11:48:34.268  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:48:34.268      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:48:34.268      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:48:34.268      LFGParentFrame:OnEvent()
11/1 11:48:56.853  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:48:56.853      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:48:56.853      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:48:56.853      LFGParentFrame:OnEvent()
11/1 11:48:56.930  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:48:56.930      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:48:56.930      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:48:56.930      LFGParentFrame:OnEvent()
11/1 11:49:12.127  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:49:12.127      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:49:12.127      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:49:12.127      LFGParentFrame:OnEvent()
11/1 11:49:36.422  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:49:36.422      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:49:36.422      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:49:36.422      LFGParentFrame:OnEvent()
11/1 11:49:36.918  An action was blocked because of taint from !BugGrabber - LFGQuery()
11/1 11:49:36.918      Interface\FrameXML\LFGFrame.lua:478 SendLFGQuery()
11/1 11:49:36.918      Interface\FrameXML\LFGFrame.lua:28 LFGParentFrame_OnEvent()
11/1 11:49:36.918      LFGParentFrame:OnEvent()