runtime: JsonSerializer is unable to deserialize a valid JSON

Given the following payload:

{
    "picture": "http://placehold.it/32x32",	
    "eyeColor": "Brown",	
    "registered": "2015-05-30T01:50:21 -01:00"	
}

And the following models:

public sealed class Model
{
    public Color EyeColor { get; set; }
    public Uri Picture { get; set; }
    public DateTime Registered { get; set; }
}

public enum Color
{
    Blue,
    Green,
    Brown
}

An exception is thrown when attempting to deserialize using:

JsonSerializer.Parse<Model>(
    json, 
    new JsonSerializerOptions
    {
        IgnoreNullValues = true,
        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
        WriteIndented = false
    });

Exception:

System.Text.Json.JsonException: ‘The JSON value could not be converted to System.Uri. Path: $.picture | LineNumber: 1 | BytePositionInLine: 39.’

In fact, it is unable to deserialize any of the three properties and not just the Uri.

This is running against the following:

Version: 3.0.0-preview6-27804-01
Commit:  fdf81c6faf

The same payload is deserialized as expected in both UTF8Json and JSON.NET.