Exception when adding/updating cart or listing cart items, problem with workflow

Hi!

We are running Commerce 11.2.2 and are still using workflows. We just found out that exceptions are caught when we run the CartValidate workflow.

Our code:

public bool AddToCart(string code, decimal quantity, out string warningMessage)
        {
            var entry = CatalogContext.Current.GetCatalogEntry(code);
            if (SiteContext.Current.Currency != _cartHelper.Cart.BillingCurrency)
            {
                SiteContext.Current.Currency = _cartHelper.Cart.BillingCurrency;
            }
            var lineItem = _cartHelper.AddEntry(entry, quantity, false);
            // If this is not set explicitly, 
            // place price does not get updated by workflow
            _cartHelper.Cart.ProviderId = "frontend";
            ValidateCart(out warningMessage);
            return _cartHelper.LineItems.Select(x => x.Code).Contains(code);
        }

Running this code gives us this exception:

Mediachase.BusinessFoundation.Data.Meta.ObjectNotFoundException: Object Contact.PrimaryKeyId = 'c0105be4-02c0-4bb5-a257-0b9c76dfa12e' not found
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject.GetRowSource
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject.Load
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject..ctor
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject..ctor
  at Mediachase.BusinessFoundation.Data.Meta.MetaObjectActivator.CreateInstance
  at Mediachase.BusinessFoundation.Data.Meta.MetaObjectActivator.CreateInstance
  at Mediachase.BusinessFoundation.Data.Meta.MetaObjectActivator.CreateInstance
  at Mediachase.BusinessFoundation.Data.Business.EntityObjectDefaultRequestHandler.Load
  at Mediachase.BusinessFoundation.Data.Business.EntityObjectDefaultRequestHandler.Execute
  at Mediachase.BusinessFoundation.Data.Business.BaseRequestHandler.Mediachase.BusinessFoundation.Data.Business.IRequestHandler.Execute
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.ExecutePipeline
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.ExecutePipelineInTransaction
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Execute
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Load
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject.GetRowSource
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject.Load
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject..ctor
  at Mediachase.BusinessFoundation.Data.Meta.MetaObject..ctor
  at Mediachase.BusinessFoundation.Data.Meta.MetaObjectActivator.CreateInstance
  at Mediachase.BusinessFoundation.Data.Meta.MetaObjectActivator.CreateInstance
  at Mediachase.BusinessFoundation.Data.Meta.MetaObjectActivator.CreateInstance
  at Mediachase.BusinessFoundation.Data.Business.EntityObjectDefaultRequestHandler.Load
  at Mediachase.BusinessFoundation.Data.Business.EntityObjectDefaultRequestHandler.Execute
  at Mediachase.BusinessFoundation.Data.Business.BaseRequestHandler.Mediachase.BusinessFoundation.Data.Business.IRequestHandler.Execute
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.ExecutePipeline
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.ExecutePipelineInTransaction
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Execute
  at Mediachase.BusinessFoundation.Data.Business.BusinessManager.Load

Removing this line of code:

 ValidateCart(out warningMessage);

Which runs the CartValidate workflow, and the exception goes away so I guess there is something in the workflow.

The web works just fine, but I'm nort sure if this affects the perfrormance in any way?

/Kristoffer