WYSIWYG is empty in dynamic rows

[thomas-kl1]

Preconditions and environment

• Magento 2.4.7 (but actually any version)

Add a design_config_form.xml adminhtml ui component with the following:

<?xml version="1.0" encoding="UTF-8"?>
<form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
    <fieldset name="other_settings">
        <fieldset name="header">
            <dynamicRows name="top_information">
                <settings>
                    <label translate="true">Top Information</label>
                    <componentType>dynamicRows</componentType>
                </settings>
                <container name="record" component="Magento_Ui/js/dynamic-rows/record">
                    <argument name="data" xsi:type="array">
                        <item name="config" xsi:type="array">
                            <item name="isTemplate" xsi:type="boolean">true</item>
                            <item name="is_collection" xsi:type="boolean">true</item>
                            <item name="componentType" xsi:type="string">container</item>
                        </item>
                    </argument>
                    <field name="caption" formElement="wysiwyg">
                        <argument name="data" xsi:type="array">
                            <item name="config" xsi:type="array">
                                <item name="wysiwygConfigData" xsi:type="array">
                                    <item name="height" xsi:type="string">100px</item>
                                    <item name="add_variables" xsi:type="boolean">true</item>
                                    <item name="add_widgets" xsi:type="boolean">false</item>
                                    <item name="add_images" xsi:type="boolean">false</item>
                                    <item name="add_directives" xsi:type="boolean">false</item>
                                    <item name="pagebuilder_button" xsi:type="boolean">false</item>
                                    <item name="is_pagebuilder_enabled" xsi:type="boolean">false</item>
                                    <item name="toggle_button" xsi:type="boolean">true</item>
                                    <item name="dynamic_id" xsi:type="boolean">true</item>
                                </item>
                            </item>
                        </argument>
                        <settings>
                            <label>Caption</label>
                        </settings>
                        <formElements>
                            <wysiwyg>
                                <settings>
                                    <cols>20</cols>
                                    <rows>8</rows>
                                    <wysiwyg>true</wysiwyg>
                                </settings>
                            </wysiwyg>
                        </formElements>
                    </field>
                    <actionDelete template="Magento_Backend/dynamic-rows/cells/action-delete">
                        <settings>
                            <label>Actions</label>
                            <componentType>actionDelete</componentType>
                        </settings>
                    </actionDelete>
                </container>
            </dynamicRows>
        </fieldset>
    </fieldset>
</form>

Now add a config.xml file in the etc folder of your module (workaround from #38733):

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <default>
        <design>
            <header>
                <top_information>
                    <row1>
                        <caption><![CDATA[<p>Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit...<p>]]></caption>
                    </row1>
                    <row2>
                        <caption><![CDATA[<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.<p>]]></caption>
                    </row2>
                    <row3>
                        <caption><![CDATA[<p>Cras bibendum ullamcorper hendrerit. Pellentesque ultricies molestie leo a consequat.</p><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.<p>]]></caption>
                    </row3>
                </sev_top_information>
            </header>
        </design>
    </default>
</config>

Now you need the di.xml:

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Theme\Model\Design\Config\MetadataProvider">
        <arguments>
            <argument name="metadata" xsi:type="array">
                <item name="top_information" xsi:type="array">
                    <item name="path" xsi:type="string">design/header/top_information</item>
                    <item name="fieldset" xsi:type="string">other_settings/header</item>
                    <item name="backend_model" xsi:type="string">Magento\Config\Model\Config\Backend\Serialized\ArraySerialized</item>
                </item>
            </argument>
        </arguments>
    </type>
</config>

Steps to reproduce

• Go to Design > Config
• Select scope default
• Check the top information field
• Fields are empty
• If you delete the 2 first rows, the fields are now correctly initialized and filled, but an empty row remains, remove this empty row
• Now keep the 3 valid rows, edit the content of these 3 rows
• Save the config
• Now you can see that the first row is correctly filled, the 2 other are empty.
• Add a new row, and remove it, the 2 other fields are now correctly filled

Expected result

You can see 3 rows with filled wysiwyg from the default value of config.xml
Wysiwyg in rows are always filled and correctly initialized.

Actual result

Rows should be initialized and filled correctly.

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @thomas-kl1. Thank you for your report.
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[m2-assistant]

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[engcom-Hotel]

Hello @thomas-kl1,

Thanks for the report and collaboration!

We can reproduce the issue mentioned here in the main description with the 2.4-develop branch, confirming the issue. For reference, we are attaching the module which helps us in issue reproduction:

Magentoissues.zip

Thanks