Erro de post request via postman

Olá, criei outro post semana passada, porém não tive respostas então estou criando este com melhor detalhes sobre o meu erro.

Quando faço um post via postman para minha api recebo o seguinte retorno.

An unhandled exception occurred while processing the request.

IOException: Unexpected end of Stream, the content may have already been read by another component.
Microsoft.AspNetCore.WebUtilities.MultipartReaderStream.ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)

o log de erros mostra o seguinte:

IOException: Unexpected end of Stream, the content may have already been read by another component.
Microsoft.AspNetCore.WebUtilities.MultipartReaderStream.ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
Microsoft.AspNetCore.WebUtilities.StreamHelperExtensions.DrainAsync(Stream stream, ArrayPool<byte> bytePool, Nullable<long> limit, CancellationToken cancellationToken)
Microsoft.AspNetCore.WebUtilities.MultipartReader.ReadNextSectionAsync(CancellationToken cancellationToken)
Microsoft.AspNetCore.Http.Features.FormFeature.InnerReadFormAsync(CancellationToken cancellationToken)
Microsoft.AspNetCore.Mvc.ModelBinding.FormValueProviderFactory.AddValueProviderAsync(ValueProviderFactoryContext context)
Microsoft.AspNetCore.Mvc.ModelBinding.CompositeValueProvider.CreateAsync(ActionContext actionContext, IList<IValueProviderFactory> factories)
Microsoft.AspNetCore.Mvc.ModelBinding.CompositeValueProvider.CreateAsync(ControllerContext controllerContext)
Microsoft.AspNetCore.Mvc.Internal.ControllerBinderDelegateProvider+<>c__DisplayClass0_0+<<CreateBinderDelegate>g__Bind|0>d.MoveNext()
Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.InvokeInnerFilterAsync()
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

Não sei do que se trata pois sou novato, e por isso estou pedindo sua ajuda.