Simple snippet (output filter) for MODX Revolution related items. Call as [[snippetname? &tpl=`chunkname` &input=`[[*your-comma-delimited-id-tv]]`]]

gistfile1.php

<?php
if ($input == null) { return 'No relevant items found.'; }

  $tpl = $modx->getOption('tpl',$scriptProperties,null);
  if (($tpl === null) || (!$modx->getChunk($tpl))) { return 'No template found'; }

  $ids = explode (',', $input);
  foreach ($ids as $a => $key) {
    $document = $modx->getObject('modResource', array(
      'published' => 1,
      'id' => $key));
    if ($document) {
      $output[] = $modx->getChunk($tpl,$document->toArray());
    }
  }
  return implode(', ',$output);
?>

I suspect you mistyped the chunk name.. It worked fine for me.

Updated the gist above with some better error reporting for chunks.