Multiple errors from PowerPivot killing Timer Service

Question

I had an issue with one of my WFEs and rolled the server back to a previous state (pre-production server).  At any rate, I brought it back to a point where it could join the farm.  It has the SQL 2012 pre-reqs for PowerPivot (the SQL AS is running on another server that did not have issues) as a WFE.

When I attempt to do almost anything with the timer service (e.g. psconfig, starting the timer service, etc.), I get:

Exception in RefreshCache. Exception message :The type initializer for 'Microsoft.AnalysisServices.SharePoint.Integration.GeminiServiceApplication' threw an exception.

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The Execute method of job definition Microsoft.SharePoint.Administration.SPConfigurationRefreshJobDefinition (ID fe3d8ee6-2bb2-42ee-b706-0d0270ab8176) threw an exception. More information is included below.  The type initializer for 'Microsoft.AnalysisServices.SharePoint.Integration.GeminiServiceApplication' threw an exception.

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Exception stack trace:   
 at System.Runtime.CompilerServices.RuntimeHelpers._RunClassConstructor(IntPtr type)    
 at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)    
 at Microsoft.SharePoint.Administration.SPAutoSerializingObject.GetInstanceFromType(Type type, String typename)    
 at Microsoft.SharePoint.Administration.SPPersistedObject.GetInstance(XmlNode xml, Guid classId, Boolean bResolveMissingTypes)    
 at Microsoft.SharePoint.Administration.SPConfigurationDatabase.GetObject(Guid id, Guid parentId, Guid type, String name, SPObjectStatus status, Byte[] versionBuffer, String xml)    
 at Microsoft.SharePoint.Administration.SPConfigurationDatabase.GetObject(SqlDataReader dr)    
 at Microsoft.SharePoint.Administration.SPConfigurationDatabase.RefreshCache(Int64 currentVersionOverride, List`1& newObjects, List`1& deletedObjects, Int64& newestObjectVersion)    
 at Microsoft.SharePoint.Administration.SPConfigurationRefreshJobDefinition.Execute(Int64& newestVersion, Nullable`1 resumeJobId, Boolean& invalidated, Object& jobDefinitionsNew, Object& objectsDeleted)    
 at Microsoft.SharePoint.Administration.SPTimerJobInvoke.InvokeConfigRefresh(TimerJobExecuteData& data, Int64& newestVersion, Int32& result, Boolean& invalidated, Object& jobDefinitionsNew, Object& objectsDeleted, Boolean& isServerBusy, Int32& recycleMode)

I've validated that the correct assembly is in the GAC along with the Web Applications' bin folders.  Thoughts?

If I delete the PowerPivot Service App and forcefully retract the powerpivotwebapp solution, the errors go away.

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