File import trouble

Yup, Zero's tutorial specified to use the open beta version, so I upgraded. Deleted the folder, still get an error. It exports two files with a ".siminfo" extension when I use the export button in "My Library". When I try to import either file back into the package I am working on, I get an error based on whatever is highlighted in the left-hand pane of S4S. It looks like it's trying to import the file into another file rather than into the package.

"Name Map" was highlighted. The error said "NameMapResource version 33 not supported...". And it only let me search for either binary or "all" file types.

When I highlight a "Household Description" and search "all file types", I get this error:

The Sims 4 Studio - Version 3.2.1.7
System.AggregateException: One or more errors occurred. (Invalid wire-type (6); this usually means you have over-written a file without truncating or setting the length; see https://stackoverflow.com/q/2152978/23354)
---> ProtoBuf.ProtoException: Invalid wire-type (6); this usually means you have over-written a file without truncating or setting the length; see https://stackoverflow.com/q/2152978/23354
at ProtoBuf.ProtoReader.State.ThrowProtoException(String message) in /_/src/protobuf-net.Core/ProtoReader.State.ReadMethods.cs:line 803
at ProtoBuf.ProtoReader.State.ThrowWireTypeException() in /_/src/protobuf-net.Core/ProtoReader.State.ReadMethods.cs:line 797
at ProtoBuf.ProtoReader.State.AppendExtensionField(State& writeState) in /_/src/protobuf-net.Core/ProtoReader.State.ReadMethods.cs:line 987
at ProtoBuf.ProtoReader.State.AppendExtensionDataImpl(IExtension extn) in /_/src/protobuf-net.Core/ProtoReader.State.ReadMethods.cs:line 908
at ProtoBuf.ProtoReader.State.AppendExtensionData(IExtensible instance) in /_/src/protobuf-net.Core/ProtoReader.State.ReadMethods.cs:line 883
at proto_2(State& , FamilyData )
at ProtoBuf.ProtoReader.State.ReadAsRoot[T](T value, ISerializer`1 serializer)
at ProtoBuf.ProtoReader.State.DeserializeRoot[T](T value, ISerializer`1 serializer)
at ProtoBuf.Serializer.Deserialize[T](Stream source)
at S4Studio.Data.IO.CAS.HouseholdTemplateResource.Read(Stream stream)
at S4Studio.ViewModels.Warehouse.WarehousePackageViewModel.ImportResource(WarehouseResourceViewModelBase existing, String f)
at S4Studio.ViewModels.Warehouse.WarehousePackageViewModel.<>c__DisplayClass49_0.<ExecuteImportResourceCommand>b__0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.<>c.<.cctor>b__272_0(Object obj)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of inner exception stack trace ---

It's like it's trying to import the file into one of the files in the package rather than importing it into the package itself.