2016.08 (build 22.8.0.28) - Immediate crash on launch

Here's the exception:

System.Configuration.ConfigurationErrorsException was unhandled
Message: An unhandled exception of type 'System.Configuration.ConfigurationErrorsException' occurred in System.Configuration.dll
Additional information: The 'DbProviderFactories' section can only appear once per config file.

Here's the callstack: (nb. OCR'd so may have some errors)

System.Configuration.dll!System.Configuration.BaseConfigurationRecord.GetSectionRecursive(string configKey, bool gethg, bool checkPermission, bool getRuntimeObject, bool requestlsHere, out object result, out object resultRuntimeObject) System.Configuration.dll!System.Configuration.BaseConfigurationRecord.GetSection(string configKey)  System.Data.dll!System.Configuration.PrivilegedConfigurationManager.GetSection(string sectionName)  System.Data.dll!System.Data.Common.DbProviderFactorieanitializeO  System.Data.dll!System.Data.Common.DbProviderFactories.GetFactory(string providerlnvariantName)  CWManagedLib.dll!System.Data.Entitanfrastructure.DependencyResolution.DefauItProviderFactoryResolver.GetService(System.Type type, object key, System.Func<System.ArgumentException,string,object> handleFailedLookup) mscorlib.dll!System.Collections.Concurrent.ConcurrentDictionary<System.Tuple<System.Type,object>,object>.GetOrAdd(System.Tuple<System.Type,object> key, System.Func<System.Tuple<System.Type,object>,object> valueFactory) System.Core.dl”System.Linq.Enumerable.WhereSelectArraylterato r< System ._Canon,System._Canon> .MoveNextO  System.Core.dl”System.Linq.Enumerable.First0rDefault<object> (System.Collections.Generic.lEnumerable<object> source, System.Func<object,bool> predicate) CWManagedLib.dll!Sy5tem.Data.Entity.lnfrastructure.DependencyResolution.RootDependencyResolver.GetService(System.Type type, object key)  System.Core.dl”System.Linq.Enumerable.WhereSelectArraylterato r< System ._Canon,System._Canon> .MoveNextO  System.Core.dl”System.Linq.Enumerable.FirstOrDefault<object> (System.Collections.Generic.lEnumerable<object> source, System.Func<object,bool> predicate) CWManagedLib.dll!System.Data.Entity.InfrastructureDependencyResolution.CompositeResoIver<System._Canon,System._Canon> .GetService(System.Type type, object key) CWManagedLib.dll!Sy5tem.Data.Entity.lnfrastructure.DependencyResolution.DbDependencyResolvechtensions.GetService< SystemData.Common.DbProviderFactory> (System.Data.EntitanfrastructureDependencyResolutionJDbDependencyResolver resolver, object key) CWManagedLib.dll!System.Data.Entity.Core.EntityClient.EntityConnection.ChangeConnectionString(string newConnectionString)  CWManagedLib.dll!System.Data.Entity.lnternal.LazylnternalConnectioanitializeO  CWManagedLib.dll!System.Data.Entity.Internal.LazylnternalConnection.CreateObjectContextFromConnectionModelO  CWManagedLib.dll!System.Data.EntityJnternal.LazylnternalContactJnitializeContactO  CWManagedLib.dll!System.Data.EntityJnternal.lnternalContext.GetEntitySetAndBaseTypeForType(System.Type entityType)  CWManagedLib.dll!Sy5tem.Data.Entity.lnternal.l.inq.lnternalSet<CWManagedLib.PluginProperty>.lnitializeO  CWManagedLib.dll!System.Data.Entity.Internal.Linq.lnternalSet<CWManagedLib.PluginProperty>.GetEnumeratorO mscorlib.dll!System.Collections.Generic.List<CWManagedLib.PluginProperty>.List(System.Collections.Generic.lEnumerable<CWManagedLib.PluginProperty> collection) System.Core.dll!System.Linq.Enumerable.ToList<CWManagedLib.PluginProperty> (System.Collections.Generic.lEnumerable<CWManagedLib.PluginProperty> source) CWDatabase.dll!<Module>.CWDatabase.CLibraryDatabase.GetPluginPropertyMap(std.map<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,std::pair<std::basic_string<wchar_t,std::char_traits<wchar_t>,5td::allocator<wchar_t> >,std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> > >,std::less<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> > >
 
This crash was also occuring in the previous build (22.8.0.18).
 
I have no problems running 22.7.0.41
 
Hope the above information helps.