Hi, 

I'm working in a validator for LinkItem. 
It does validate what I want and it works when I'm debugging it. 

However it does not work like it should in the CMS. 
Instead of showing my warning message, it displays a popup with this text: 

Could not save property. The page may have been changed by another user. Please reload the page.

It seems to be something with the scoping, I had the same issue with another validator for an Image block. That did work when the image block was standalone but not when the block was used as a property, and I guess it's the same with the LinkItem property. 

Here's how my validator is built:

public class LinkItemValidator : IValidate<LinkItem>
{
     public IEnumerable<ValidationError> Validate(LinkItem instance)
     {
           //bla bla bla check
            yield return new()
            {
                RelatedProperties = new[] { nameof(instance.Text) },
                ErrorMessage = "Error message",
                Severity = ValidationErrorSeverity.Warning,
                ValidationType = ValidationErrorType.Unspecified
            };
     }
}

Does anybody know how I can validate the text on LinkItem and other similar properties?  

Thanks.