When Shopify Picker Field is used in a document type and we pull the item through the Content Delivery API we get the following. any suggestions?

{
  "type": "https://tools.ietf.org/html/rfc7231#section-6.6.1",
  "title": "System.NullReferenceException",
  "status": 500,
  "detail": "Object reference not set to an instance of an object.",
  "traceId": "00-188371beeb2d3de4783121cfd92a63a8-204df0b312881fec-00",
  "exception": {
    "details": "System.NullReferenceException: Object reference not set to an instance of an object.\r\n   at Umbraco.Cms.Integrations.Commerce.Shopify.Editors.ShopifyProductPickerValueConverter.<>c.<ConvertIntermediateToObject>b__6_2(ProductDto p)\r\n   at System.Linq.Enumerable.WhereSelectListIterator`2.ToList()\r\n   at Umbraco.Cms.Integrations.Commerce.Shopify.Editors.ShopifyProductPickerValueConverter.ConvertIntermediateToObject(IPublishedElement owner, IPublishedPropertyType propertyType, PropertyCacheLevel referenceCacheLevel, Object inter, Boolean preview)\r\n   at Umbraco.Cms.Infrastructure.PublishedCache.Property.<>c__DisplayClass25_0.<GetDeliveryApiValue>g__GetDeliveryApiObject|0()\r\n   at Umbraco.Cms.Infrastructure.PublishedCache.Property.GetDeliveryApiDefaultObject(CacheValue cacheValues, Func`1 getValue)\r\n   at Umbraco.Cms.Infrastructure.PublishedCache.Property.GetDeliveryApiValue(Boolean expanding, String culture, String segment)\r\n   at Umbraco.Cms.Core.DeliveryApi.ApiPropertyRenderer.GetPropertyValue(IPublishedProperty property, Boolean expanding)\r\n   at Umbraco.Cms.Api.Delivery.Rendering.RequestContextOutputExpansionStrategy.<MapProperties>b__8_1(IPublishedProperty property)\r\n   at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](TSource[] source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)\r\n   at Umbraco.Cms.Api.Delivery.Rendering.RequestContextOutputExpansionStrategy.MapProperties(IEnumerable`1 properties)\r\n   at Umbraco.Cms.Api.Delivery.Rendering.RequestContextOutputExpansionStrategy.MapContentProperties(IPublishedContent content)\r\n   at Umbraco.Cms.Core.DeliveryApi.ApiContentBuilderBase`1.Build(IPublishedContent content)\r\n   at System.Linq.Enumerable.SelectArrayIterator`2.MoveNext()\r\n   at System.Linq.Enumerable.WhereEnumerableIterator`1.ToArray()\r\n   at Umbraco.Cms.Api.Delivery.Controllers.QueryContentApiController.Query(String fetch, String[] filter, String[] sort, Int32 skip, Int32 take)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()\r\n--- End of stack trace from previous location ---\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()\r\n--- End of stack trace from previous location ---\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)\r\n   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)\r\n   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)\r\n   at Umbraco.Cms.Web.Common.Middleware.BasicAuthenticationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()\r\n--- End of stack trace from previous location ---\r\n   at Umbraco.Cms.Web.BackOffice.Middleware.BackOfficeExternalLoginProviderErrorMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()\r\n--- End of stack trace from previous location ---\r\n   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)\r\n   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)\r\n   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)\r\n   at Microsoft.AspNetCore.Session.SessionMiddleware.Invoke(HttpContext context)\r\n   at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)\r\n   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)\r\n   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)\r\n   at StackExchange.Profiling.MiniProfilerMiddleware.Invoke(HttpContext context) in C:\\projects\\dotnet\\src\\MiniProfiler.AspNetCore\\MiniProfilerMiddleware.cs:line 114\r\n   at Umbraco.Cms.Web.Common.Middleware.UmbracoRequestMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Umbraco.Cms.Web.Common.Middleware.UmbracoRequestMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()\r\n--- End of stack trace from previous location ---\r\n   at Umbraco.Cms.Web.Common.Middleware.PreviewAuthenticationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()\r\n--- End of stack trace from previous location ---\r\n   at Umbraco.Cms.Web.Common.Middleware.UmbracoRequestLoggingMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()\r\n--- End of stack trace from previous location ---\r\n   at SixLabors.ImageSharp.Web.Middleware.ImageSharpMiddleware.Invoke(HttpContext httpContext, Boolean retry)\r\n   at Umbraco.Forms.Web.HttpModules.ProtectFormUploadRequestsMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)\r\n   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.<>c__DisplayClass6_1.<<UseMiddlewareInterface>b__1>d.MoveNext()\r\n--- End of stack trace from previous location ---\r\n   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)"