ModelState.IsValid == false with no errors

In Version 7.3.3 I have a problem with a validator. In the Controller i can see ModelState.IsValid == false but no errors, because ModelState.ValidationState == Unvalidated .

Same validator works fine in version 7.3.2 (with exactly same data posted). I’m using fluent validator in an asp net core 2 application. The validator is the following PaymentModelEditEnrollValidator

   
   public class PaymentModelEditEnrollValidator : PaymentModelEditValidator<PaymentModelEditEnroll>
    {

    }

    public class PaymentModelEditValidator : PaymentModelEditValidator<PaymentModelEdit>
    {

    }

    public abstract class PaymentModelEditValidator<T> : AbstractValidator<T> where T : PaymentModelEdit
    {
        public PaymentModelEditValidator()
        {

            When(en => en.CanHaveExtraPayment, () =>
             {

                 When(en => en.Detail1.Amount.GetValueOrDefault(0) > 0, () =>
                 {
                     RuleFor(en => en.Detail1.ReasonId).NotNull().NotEmpty();
                     RuleFor(en => en.Detail1.TypeId).NotNull().NotEmpty();
                 });

                 When(en => en.Detail2.Amount.GetValueOrDefault(0) > 0, () =>
                 {
                     RuleFor(en => en.Detail2.ReasonId).NotNull().NotEmpty();
                     RuleFor(en => en.Detail2.TypeId).NotNull().NotEmpty();
                 });

                 When(en => en.Detail3 != null, () =>
                 {
                     When(en => en.Detail3.Amount.GetValueOrDefault(0) > 0, () =>
                     {
                         RuleFor(en => en.Detail3.ReasonId).NotNull().NotEmpty();
                         RuleFor(en => en.Detail3.TypeId).NotNull().NotEmpty();
                     });
                 });
                 When(en => en.Detail4 != null, () =>
                 {
                     When(en => en.Detail4.Amount.GetValueOrDefault(0) > 0, () =>
                      {
                          RuleFor(en => en.Detail4.ReasonId).NotNull().NotEmpty();
                          RuleFor(en => en.Detail4.TypeId).NotNull().NotEmpty();
                      });
                 });

               
             });
        }
    }

[JeremySkinner]

@sid-6581 I’ve pushed out 7.3.4 which should fix the issue with shutting off native aspnet core validation (this only affected child collections, not root-level models).

[sid-6581]

@JeremySkinner seems to have fixed it for me too!