SA MSbuild task errors out during Teambuild

Hello, I'm using SmartAssembly 6.8.
My workflow involves a solution that builds 6 other .dll files before building an .exe file project at the end.
It is that .exe file which is obfuscated, has the .dll files obfuscated + merged, or embedded.
When running a local build from VS2010, (either via Build->Build Solution or Right clicking on the .exe project and publishing using ClickOnce,) I am able to create and obfuscate my the .exe successfully during the "AfterCompile" target containing the SmartAssembly.MSBuild.Tasks.Build command.

However, when attempting to build the project via Teambuild, I receive the following error:

...Unhandled Exception: Microsoft.Build.Shared.InternalErrorException: MSB0001: Internal MSBuild Error: Attempted to use an inactive task host.
 at Microsoft.Build.Shared.ErrorUtilities.VerifyThrow(Boolean condition, String unformattedMessage)
 at Microsoft.Build.BackEnd.TaskHost.LogMessageEvent(BuildMessageEventArgs e)
 at Microsoft.Build.Utilities.TaskLoggingHelper.LogMessage(MessageImportance importance, String message, Object[] messageArgs)
 at System.IO.TextWriter.SyncTextWriter.WriteLine(String value)
 at Microsoft.Build.CommandLine.MSBuildApp.Execute(String commandLine)
 at Microsoft.Build.CommandLine.MSBuildApp.Main()
 TF270015: 'MSBuild.exe' returned an unexpected exit code. Expected '0'; actual '255'.

Digging further into the log, this is what it says:

_CopyAppConfigFile:
  Copying file from "Config\Test\app.config" to "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.exe.config".
_CopyManifestFiles:
  Copying file from "obj\Test\TimeBloxGUI.exe.manifest" to "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.exe.manifest".
  TimeBloxGUI -> C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.exe.manifest
  Copying file from "obj\Test\TimeBloxGUI.application" to "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.application".
  TimeBloxGUI -> C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.application
CopyFilesToOutputDirectory:
  Copying file from "obj\Test\TimeBloxGUI.exe" to "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.exe".
  TimeBloxGUI -> C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.exe
  Copying file from "obj\Test\TimeBloxGUI.pdb" to "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Binaries\Test\TimeBloxGUI.pdb".
AfterBuild:
  SmartAssembly v6.8.0.121
  Copyright © Red Gate Software 2005–2013
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj(521,5): error : SmartAssembly build failed:
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj(521,5): error : The type initializer for '.' threw an exception.
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning : The type initializer for '.' threw an exception.
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at Œ.€.()
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at ...ctor(String ,  )
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at ...ctor(String , Boolean ,  )
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at Œ.€.( , Boolean , String )
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at Œ.€.(String )
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at SmartAssembly.ConsoleApp.CommandLineAction(String ,  , Dictionary`2 )
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at SmartAssembly.ConsoleApp.Run(String[] , Boolean )
C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj : warning :    at SmartAssembly.ConsoleApp.Run(String[] )
Done Building Project "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI\TimeBloxGUI.csproj" (default targets) -- FAILED.
Done Building Project "C:\MSVS\CTMS\Obfuscated TimeBloxGUI\Sources\TimeBloxGUI.sln" (default targets) -- FAILED.

Build FAILED.

I don't know why this occurs.
Additionally, I can get it to "build" and obfuscate successfully from a team build using the "AfterBuild" target and the exec command=, however this causes issues with our post-build scripts...effectively breaking our workflow.
My .saproj file is looking for the dependency paths using the following structure:

HintPath="..\..\..\BLSupport\obj\Test\BLSupport.dll">

with Test being that configuration (there are 3, and each has its own .saproj and files for that version). So I know that everything should be in the proper place & visible...

Does anyone know why the SA MSbuild task would be able to obfuscate successfully during a localbuild/ClickOnce Publish (locally), but generate the described errors during a Team Build?