After 9.0 Update Marketing Lists cannot be added to Campaigns owned by a team (Microsoft.Xrm.Kernel.Contracts.Exceptions.KernelException)

OrganizationServiceFault Microsoft.Xrm.Kernel.Contracts.Exceptions.KernelException: An unexpected exception happened. Details: systemuser With Id = 9e3f27d3-b14e-e811-811c-5065f38b24a1 Does Not Exist
 at Microsoft.Crm.Platform.Server.KernelServices.AuthorizationService.WrapCrmSecurityException(Action action)
 at Microsoft.Crm.Platform.Server.KernelServices.AuthorizationService.AssertRecordAccess(EntityReference record, EntityAction recordAction, EntityReference user)
 at Microsoft.Dynamics.Solution.Common.SecurityService.CheckAccess(EntityReference userReference, EntityReference entityReference, EntityAction entityAction, IPluginContext context)
 at Microsoft.Dynamics.Marketing.Common.MarketingSecurityValidator.CheckAccess(EntityReference userReference, EntityReference entityReference, EntityAction entityAction, IPluginContext context)
 at Microsoft.Dynamics.Marketing.Plugins.CampaignItemSecurityService.AddItemSecurityAccessCheck(Guid campaignId, Guid entityId, String entityTypeName, IMarketingPluginContext`1 localContext)
 at Microsoft.Dynamics.Marketing.Plugins.CampaignAddItem.ExecuteCrmPlugin(IMarketingPluginContext`1 localContext)
 at Microsoft.Dynamics.Marketing.Plugins.MarketingPluginBase.Execute(IServiceProvider serviceProvider)

I am aware of that 'systemuser With Id = 9e3f27d3-b14e-e811-811c-5065f38b24a1 Does Not Exist' in our system. The ID in the error belongs to the team of the Campaign.
I am really confused about is this new kind of security feature or a bug? We need to find a way to add marketing list to those campaigns
because all of our custom logic depends on that. If we change the campaign owner to a system user, we can add marketing list. However, it is not the case for the current flow we have.

Thank you in advance.