Unable to reindex associated models in after_save/delete callbacks

[heaven]

What I am doing is:

class Site < ActuveRecord::Base
  has_many :site_relationships, :dependent => :destroy
  has_many :profiles, :through => :site_relationships

  after_save :reindex_profiles

  def reindex_profiles
    Sunspot.index!(self.profiles)
  end
end

But nothing happen, profile doesn't appear in results, but if I will disable the queue all works as expected.
Also all works if I will run it in this way:

site = Site.last
site.reindex_profiles

[heaven]

This is what is queued, when I saving the site:

#<Sunspot::IndexQueue::Batch:0x00000004f85f30
 @delete_entries=[],
 @entries=
  [#<Sunspot::IndexQueue::Entry::MongoImpl:0x00000004f808a0
    @doc=
     {"_id"=>BSON::ObjectId('4f6b37acd6194c5431000004'),
      "record_id"=>102,
      "record_class_name"=>"Profile",
      "lock"=>nil,
      "priority"=>0,
      "attempts"=>0,
      "is_delete"=>false,
      "run_at"=>2012-03-22 14:31:08 UTC}>,
   #<Sunspot::IndexQueue::Entry::MongoImpl:0x00000004f82a60
    @doc=
     {"_id"=>BSON::ObjectId('4f6b37acd6194c5431000005'),
      "record_id"=>103,
      "record_class_name"=>"Site",
      "lock"=>nil,
      "priority"=>0,
      "attempts"=>0,
      "is_delete"=>false,
      "run_at"=>2012-03-22 14:31:08 UTC}>],
 @queue=
  #<Sunspot::IndexQueue:0x00000004bc79e8
   @batch_handler=
    #<Proc:0x00000004f76f80@/mnt/media/Work/workspace/crm/app/loops/solr_loop.rb:8>,
   @batch_size=100,
   @class_names=[],
   @retry_interval=60,
   @session=
    #<Sunspot::Session:0x00000004bc0120
     @adds=0,
     @config=
      #<LightConfig::Configuration:0x00000004bbff68
       @properties=
        {:solr=>
          #<LightConfig::Configuration:0x00000004bbf040
           @properties={:url=>"http://127.0.0.1:8080/solr"}>,
         :master_solr=>
          #<LightConfig::Configuration:0x00000004bbdf60
           @properties={:url=>nil}>,
         :pagination=>
          #<LightConfig::Configuration:0x00000004bbd150
           @properties={:default_per_page=>30}>}>,
     @connection=
      #<RSolr::Client:0x00000004fcf9f0
       @connection=
        #<RSolr::Connection:0x00000004fcfa18
         @http=#<Net::HTTP 127.0.0.1:8080 open=false>>,
       @options={:url=>"http://127.0.0.1:8080/solr"},
       @proxy=nil,
       @uri=#<URI::HTTP:0x0000000500bb58 URL:http://127.0.0.1:8080/solr/>,
       @xml=#<RSolr::Xml::Generator:0x0000000504ace0>>,
     @deletes=0,
     @indexer=
      #<Sunspot::Indexer:0x0000000500b8d8
       @batch=nil,
       @connection=
        #<RSolr::Client:0x00000004fcf9f0
         @connection=
          #<RSolr::Connection:0x00000004fcfa18
           @http=#<Net::HTTP 127.0.0.1:8080 open=false>>,
         @options={:url=>"http://127.0.0.1:8080/solr"},
         @proxy=nil,
         @uri=#<URI::HTTP:0x0000000500bb58 URL:http://127.0.0.1:8080/solr/>,
         @xml=#<RSolr::Xml::Generator:0x0000000504ace0>>>>>>

[heaven]

Config:

unless Rails.env.test?
  Sunspot::IndexQueue::Entry.implementation = :mongo
  Sunspot::IndexQueue::Entry::MongoImpl.connection = 'localhost'
  Sunspot::IndexQueue::Entry::MongoImpl.database_name = 'crm_production'

  session = Sunspot::Session.new { |config| config.solr.url = Settings.solr.url }
  queue = Sunspot::IndexQueue.new(:session => session)
  Sunspot.session = Sunspot::IndexQueue::SessionProxy.new(queue)
end

Loop for queue processing:

class SolrLoop < Loops::Base
  def run
    session = Sunspot::Session.new { |config| config.solr.url = Settings.solr.url }
    queue = Sunspot::IndexQueue.new(:session => session, :batch_size => 100)

    with_period_of(5) do
      if queue.total_count > 0
        queue.batch_handler do |batch|
          info("Total: #{queue.total_count}, Ready: #{queue.ready_count}")
          batch.submit!
        end

        begin
          queue.process
        rescue Mysql2::Error, ActiveRecord::StatementInvalid
          error("MySQL Error")
          ActiveRecord::Base.connection_pool.disconnect!
        rescue
          error($!)
        else
          queue.reset!
          info("Done")
        end
      end
    end
  end
end

[heaven]

Profile.remove_all_from_index!
Profile.search.results.count
 => 0

Profile.count
=> 103

Site.count
=> 103

Site.all.map(&:save)

Profile.search { |q| q.paginate(:page => 1, :per_page => 100) }.results.count
=> 23 # this number is ranom and could vary from 7 to 85 (what I seen)

Without queue:

Site.all.map(&:save)
Profile.search { |q| q.paginate(:page => 1, :per_page => 200) }.results.count
=> 103

The the gem is very unreliable for use.