COMException during symbol lookup when using OpenStackViewer and MutableTraceEventStackSource

When opening a stack view via OpenStackViewer with MutableTraceEventStackSource from an extension, symbols are loaded and shown as expected.
However, the following exception occurs when trying to open any other view, e.g., built-in "CPU Stacks", and no symbols are shown.

An exception occurred during symbol lookup.  Continuing...
Exception: System.Runtime.InteropServices.COMException (0x80040155): Interface not registered (Exception from HRESULT: 0x80040155)
   at Dia2Lib.DiaLoader.IClassFactory.CreateInstance(Object aggregator, Guid& refiid, Object& createdObject)
   at Dia2Lib.DiaLoader.GetDiaSourceObject()
   at Microsoft.Diagnostics.Symbols.NativeSymbolModule..ctor(SymbolReader reader, String pdbFilePath, Action`1 loadData)
   at Microsoft.Diagnostics.Symbols.SymbolReader.OpenSymbolFile(String pdbFilePath)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceCodeAddresses.OpenPdbForModuleFile(SymbolReader symReader, TraceModuleFile moduleFile)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceCodeAddresses.LookupSymbolsForModule(SymbolReader reader, TraceModuleFile moduleFile, IEnumerator`1 codeAddressIndexCursor, Boolean enumerateAll, Int32& totalAddressCount)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceCodeAddresses.LookupSymbolsForModule(SymbolReader reader, TraceModuleFile file)
Completed: Looking up high importance PDBs that are locally cached   (Elapsed Time: 0.079 sec)

Same happens when opening them in the reverse order. Essentially, the first view has no issues with loading symbols, while the second one fails with the above exception.

Reproduce the issue by opening a stack view through OpenStackViewer with MutableTraceEventStackSource, then opening a second view such as CPU Stacks in either order. Start with Dia2Lib.DiaLoader.GetDiaSourceObject and SymbolReader.OpenSymbolFile in the reported stack trace; done means both views load symbols without the COMException.