CMS 11.13

So the content provider pages are listed in the menu and they are working in public.

but i cant open the ContentProvider Page in admin anymore

xhr: /EPiServer/shell/Stores/context/?uri=epi.cms.contentdata%3A%2F%2F%2F1224__jobprovider&dojo.preventCache=1576227007314

[NullReferenceException: Object reference not set to an instance of an object.]
   EPiServer.Core.Internal.NullContentVersionRepository.CreateContentVersion(IContent content) +444
   EPiServer.Core.Internal.NullContentVersionRepository.LoadCommonDraft(ContentReference contentLink, String language) +15
   EPiServer.Cms.Shell.UI.Rest.Internal.CmsContentContextResolver.GetCommonDraft(ContentReference contentReference, String language, ContentLanguageInformation& languageInformation) +626
   EPiServer.Cms.Shell.UI.Rest.Internal.CmsContentContextResolver.TryResolveUri(Uri uri, ClientContextBase& instance) +164
   EPiServer.Shell.UI.Rest.ContextStore.ResolveUri(Uri uri) +87

But i change the xhr manually to work id 1 /EPiServer/shell/Stores/context/?uri=epi.cms.contentdata%3A%2F%2F%2F1224_1_jobprovider&dojo.preventCache=1576227007314

IT WORKS!  Whats up with the NullContentVersionRepository.CreateContentVersion ? isnt the purpose of NullContentVersionRepository taking care of it? Since a content provider doesnt have any versions?