ANSYS 2019 R2, Discovery AIM Issue: "An unexpected error has occurred: Invalid type path: "

I'm having an issue with Discovery AIM only. I tried to open Workbench, Icepak, and SpaceClaim and these apps open fine. However, I tried to open AIM and I keep getting this error:

An unexpected error has occurred: Invalid type path:

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System.Exception: Invalid type path:

at Ansys.Study.Proxies.AfdCore.Common.CApiCommon.CheckReturn(IntPtr ret)

at Ansys.Study.Proxies.AfdCore.PhysicsDataModel.CoreApplicability.Physics..ctor(IPhysicsDllFunctions funcs, IMetadataDllFunctions metaFuncs, String rulesData, String physicsData)

at Ansys.Study.Proxies.AfdCore.PhysicsDataModel.DataSourceUtils.DataSourceFactory.MakePhysicsAndStaticInfo(String rulesdata, String physicsdata, Physics& physics, StaticTypeInfo& staticInfo)

at Ansys.Study.Proxies.AfdCore.PhysicsDataModel.DataSourceUtils.DataSourceFactory.MakeDataSourceAndObjectFactory[TPropertyExtender](IDataSource& dataSource, IAggregateObjectFactory& objectFactory, AggregateObjectParenting& aggregateObjectParenting, IMultiModeSyncer& syncer, IMutationManager& mutationManager, EvaluatorManager& evaluatorManager)

at Ansys.Study.PhysicsCoupling.PCService.MakePhysicsCouplingDataSource(IApiProvider apiProvider, ISyncSetup syncSetup, ISynchronisationMode syncMode, PropertyMapper propertyMapper)

at Ansys.Study.PhysicsCoupling.PCService..ctor()

at Ansys.Study.PhysicsCoupling.PCService.get_Instance()

at Ansys.Study.Proxies.PhysicsCoupling.Application.SystemCouplingEventObserver.EventSourcePersistenceStateChanging(Object sender, PersistenceActionsEventArgs e)

--- Ansys.Core.Events.EventPublishFailedException: Invalid type path:

Event:

at Ansys.Core.Events.EventPublishHelper.RethrowExceptions(Boolean wait)

at Ansys.Core.Events.EventPublishHelper.FireAsyncWait(List`1 events)

at Ansys.Core.Events.EventPublishHelper.FireAsyncWait(Delegate del, Object sender, EventArgs evtArg)

at Ansys.Core.DataModel.ProjectSystem.ProjectEventListener.Receive(IEvent eventInfo)

at Ansys.Core.Events.EventInvoker.Invoke()

--- Ansys.Core.Events.EventPublishFailedException: Invalid type path:

Event: Name=ProjectAboutToReplace Topic=Project Source=ResetCommand Data={}

at Ansys.Core.Events.EventInvoker.Invoke()

at Ansys.Core.Events.EventPublishHelper.InvokeInvoker(EventInvoker invoker, Boolean wait)

--- Ansys.Core.Events.EventPublishFailedException: Invalid type path:

Event:

at Ansys.Core.Events.EventPublishHelper.RethrowExceptions(Boolean wait)

at Ansys.Core.Events.EventPublishHelper.FireAsyncWait(List`1 events)

at Ansys.Core.Events.EventManager.FireEvent(List`1 observers, IEvent eventInfo, Boolean wait)

at Ansys.Core.Events.EventManager.PublishEvent(IEvent eventInfo, List`1 matchingProxies, Boolean wait)

at Ansys.Core.Events.EventManager.DoPublishAndWait(IEvent eventInformation)

at Ansys.Core.Events.EventInvoker.Invoke()

--- Ansys.Core.Events.EventPublishFailedException: Invalid type path:

Event: Name=ProjectAboutToReplace Topic=Project Source=ResetCommand Data={}

at Ansys.Core.Events.EventInvoker.Invoke()

at Ansys.Core.Events.EventPublishHelper.InvokeInvoker(EventInvoker invoker, Boolean wait)

--- Ansys.Core.Events.EventPublishFailedException: Invalid type path:

Event:

at Ansys.Core.Events.EventPublishHelper.RethrowExceptions(Boolean wait)

at Ansys.Core.Events.EventPublishHelper.FireAsyncWait(List`1 events)

at Ansys.Core.Events.EventManager.FireEvent(List`1 observers, IEvent eventInfo, Boolean wait)

at Ansys.Core.Events.EventManager.PublishEvent(IEvent eventInfo, List`1 matchingProxies, Boolean wait)

at Ansys.Core.Events.EventManager.DoPublishAndWait(IEvent eventInformation)

at Ansys.Core.Events.EventManager.PublishAndWait(IEvent eventInformation)

at Ansys.Core.DataModel.ProjectSystem.ResetCommand.Execute(IFullContext context)

at Ansys.Core.Commands.Concurrency.CommandWorkUnit.executeInContext(CommandContext subContext, IExecutionEngineCallback tracer)

at Ansys.Core.Commands.Concurrency.BaseWorkUnit.doExecute(IExecutionEngineCallback executionEngine, CommandContext subContext)

at Ansys.Core.Commands.Concurrency.BaseWorkUnit.Execute(IExecutionEngineCallback executionEngine, Boolean dontCatchExceptions)

--- Ansys.Core.Commands.CommandFailedException: Invalid type path:

CommandName: Reset()

at Ansys.Core.Commands.CommandAsyncResult.RethrowFailureException(Exception e)

at Ansys.Core.Commands.CommandAsyncResult.Wait(Int32 milliSecondsTimeout, Boolean exitContext)

at Ansys.Core.DataModel.ProjectSystem.ResetCommand.InvokeAndWait(IProtectedContext context)

at Ans.Program.Runtime.Initialize(RuntimeSettings settings)

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Thanks in advance for the help!

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