Region with multiple items not displaying on the site after update to 2.8.30

I have a region with about 1200 items in it. It was displaying until I upgraded. Now it's as though there are no items at all. I can view them and edit them in the dashboard. I've tried adding a new region, republishing all the pages, refreshing the page in the browser - none of it has had any effect. I'd love some help getting these regions displaying again.

Here's my Diagnostick Report

Perch: 2.8.30, PHP: 5.5.24, MySQL: mysqlnd 5.0.11-dev - 20120503 - $Id: 15d5c781cfcad91193dceae1d2cdd127674ddb3e $, with PDO
Server OS: Darwin, apache2handler
Installed apps: content (2.8.30), assets (2.8.30), categories (2.8.30), perch_blog (5.0), perch_forms (1.8.3), perch_backup (1.2)
App runtimes: <?php $apps_list = array( 'content', 'categories', 'perch_forms', 'perch_blog', );
PERCH_LOGINPATH: /admin
PERCH_PATH: /Users/Natalie/Documents/Websites/satterberg.dev/admin
PERCH_CORE: /Users/Natalie/Documents/Websites/satterberg.dev/admin/core
PERCH_RESFILEPATH: /Users/Natalie/Documents/Websites/satterberg.dev/admin/resources
Image manipulation: GD
PHP limits: Max upload 512M, Max POST 512M, Memory: 512M, Total max file upload: 512M
F1: 2edba60ed1f613d6dd804feb202456a2
Resource folder writeable: Yes
HTTP_HOST: satterberg.dev
DOCUMENT_ROOT: /Users/Natalie/Documents/Websites/satterberg.dev
REQUEST_URI: /admin/core/settings/diagnostics/
SCRIPT_NAME: /admin/core/settings/diagnostics/index.php

Here's the page where I want the items to display:

<?php
    include( 'admin/runtime.php' );
    perch_layout( 'global.header' );
?>

<h1 class="page-title">Grantee Database</h1>

<div class="cms-content">
    <?php perch_content( 'Intro' ); ?>
</div>

<?php  perch_form( 'grantee_filter.html' );  ?>

<?php

$filters = array();

if ( perch_get( 'year' ) ) {
    $filters[] = array(
        'filter' => 'year',
        'match'  => 'eq',
        'value'  => perch_get( 'year' ),
    );
}

if ( perch_get( 'program' ) ) {
    $filters[] = array(
        'filter' => 'program',
        'match'  => 'eq',
        'value'  => perch_get( 'program' ),
    );
}

if ( perch_get( 'term' ) ) {
    $filters[] = array(
        'filter' => 'term',
        'match'  => 'eq',
        'value'  => perch_get( 'term' ),
    );
}

if ( !count( $filters ) ) $filters = false;
?>


<?php
    perch_content_create('Grantees', array(
        'multiple' => true,
        'template'  => 'grantee-listing.html',
        'edit-mode' => 'singlepage',
        'add-to-top' => true
    ) );

    perch_content_custom('Grantees', array(
        'filter'        => $filters,
    ) );
?>

<?php perch_layout('global.footer'); ?>

And then here's the template:

<perch:before>
<table class="grantee-listing">
    <thead>
        <tr>
            <th class="year">Year</th>
            <th class="org-name">Organization</th>
            <th class="details">Details</th>
        </tr>
    </thead>
    <tbody>
</perch:before>

    <tr>
        <td class="year">
            <perch:content id="year" type="text" label="Year" required="true" divider-before="Grant Information"/>
        </td>
        <td class="org-name">
            <div class="name">
                <perch:content id="org-name" type="text" label="Organization Name" required="true" title="true" order="1" />
                <perch:if exists="org-link">
                    <a href="<perch:content id="org-link" type="text" label="Organization Link" order="4" />">Website
                    </a>
                </perch:if>
            </div>
            <perch:if exists="location">
                <div class="location"><perch:content id="location" type="text" label="Location" order="2" /></div>
            </perch:if>
        </td>
        <td class="details">
            <div class="program"><perch:content id="program" type="select" label="Program" options="Core Support Grants, Community Partnership,  Invitational Grant, Family Award, Capacity Building Grant, Open Grant, Legacy Grant, Original" allowempty="true" required="true" title="true" /></div>
            <div class="term"><strong>Term: </strong><perch:content id="term" type="text" label="Grant Term" required="true" help="The term of the grant in years. Enter a number only." /> Year<perch:if id="term" value="1" match="gt" >s</perch:if></div>
            <div class="amount"><strong>Amount: </strong>$<perch:content id="amount" type="text" label="Grant Amount" required="true" format="#:0" help="Enter dollar amount without dollar signs, commas, or any other special characters. Just the number." /></div>
        </td>
    </tr>

    <perch:content id="intro" type="textarea" label="Introduction" editor="redactor" html="true" divider-before="Grantee Story" suppress="true" />

<perch:after>
    </tbody>
</table>
</perch:after>

<perch:noresults>
    <div class="no-results cms-content">
        <p>Sorry, no grantees match your search. Try adjusting your search terms.</p>
    </div>
</perch:noresults>

How can I get this fixed? All I can see on the page is the noresults message.