[dry-validation 1.6] When apply rule on array of hashes I don't get errors for every attribute

Support dry-validation
1

Hi.
I have this form( dry-validation 0.11):

Form = Dry::Validation.Schema(BaseForm) do
  optional(:scopes).maybe do
    array? do
      each do
        hash? do
          required(:scope_id).filled(:int?, :scope_exists?)
          required(:objectives).filled(:array?, min_size?: 1) do
            array? do
              each(:int?)
            end
         end
       end
     end
  end
end

#scope_exists? method simple checks if there is record in db.If yes, then it raises error: “is not available”. Consider this input data:

{
   scopes: 
    [
      {
         scope_id: 1,
         objectives: ["1", :b, 1]
      },
      {
         scope_id: 121,
         objectives: ["string", [], 1]
      }
    ]
}

Lets assume that there is already record in table Scopes with id = 1. When I do: Form.call(data).errors.to_h I receive following errors:

{
  :scopes => { 
      0 => { 
              :scope_id => ["is not available"],
              :objectives => { 
                0 => ["must be an integer"], 1 => ["must be an integer"]
              }
            },
      1 => { 
              :objectives => { 
                0 => ["must be an integer"], 1 => ["must be an integer"]
              }
            }
   }
}

Now I have to re-write this form in dry-validation 1.6 but I am having problems. Keep in mind that I want to get same errors as in dry-validation 0.11.
At first I thought I can do something like this(dry-validation 1.6)

class Form < BaseForm

  params do
    optional(:scopes).maybe(:array) do
      each do
        hash? do
          required(:scope_id).filled(:integer)
          required(:objectives).filled(:array, min_size?: 1) do
            each(:integer)
          end
        end
     end
    end
  end

  rule(:scopes).each do |index:|
    key([:scopes, index, :scope_id]).failure(:scope_exists?) unless scope_exists?(value[:scope_id])
  end
end

However, when I do: Form.new.call(data).errors.to_h I get:

{ :scopes => { 0 => { :scope_id => ["is not available"] } } }

I don’t get any errors regarding invalid types in objectives array like I get in dry-validation 0.11.
I eventualy achieve the same error structure with this rather verbose code:

rule(:scopes).each do |index:|

  if !value.keys.include? :scope_id
    key([:scopes, index, :scope_id]).failure("is missing")
  elsif value[:scope_id].nil?
    key([:scopes, index, :scope_id]).failure("must be filled")
  elsif !value[:scope_id].is_a?(Integer)
    key([:scopes, index, :scope_id]).failure("must be an integer")
  else
    key([:scopes, index, :scope_id]).failure(:scope_exists?) unless scope_exists?(value[:scope_id])
  end

  if !value.keys.include? :objectives
    key([:scopes, index, :objectives]).failure("is missing")
  elsif value[:objectives].nil?
    key([:scopes, index, :objectives]).failure("must be filled")
  elsif !value[:objectives].is_a?(Array)
    key([:scopes, index, :objectives]).failure("must be an array")
  elsif value[:objectives].size < 1
    key([:scopes, index, :objectives]).failure("size cannot be less than 1")
  else
    value[:objectives].each_with_index do |obj_value, obj_index|
      key([:scopes, index, :objectives, obj_index]).failure("must be an integer") unless obj_value.is_a?(Integer)
    end
  end 
end

Is this a bug?Am I am missing something?Do you know how Can I get errors like I get in 0.11 version?
Thanks in advance.