Multi-field values are not showing the stored values

Hi,

Recently we are facing issues in showing the stored values of custom multifield widgets(xtype="mtmulticompositefield"). The values are stored in crx node but not visible when opened in dialog. We are using AEM Version 6.1.0.SP2-CFP12. This functionality was working fine before and stopped working after some security updates.

Whenever page properties dialog is opened, "<page-path>/jcr:content.1.json" request is going and its taking the nodes with first level alone. The multifield values are stored in inner levels and its not retrieved in the jcr:content request. If we try the same request in browser with "<page-path>/jcr:content.infinity.json" the multifield values are coming in response. Might be after some update the "infinity.json" requests got changed to "1.json" for page properties jcr content.

Is there any way to make aem call "infinity.json" instead of "1.json" while opening page properties? Which place we have to configure these settings if its overridden by some security updates. Please suggest some alternate solutions if available.