Facings issues while migrating from Struts 2.5.x to 6.7

Hi,

We are migrating our application from struts2-core 2.5.33 to 6.7.0.

Post migration, we are facing issues while populating bean values in
session.

${} is printing null values. Seems the EL is not working post 6.x migration.

Can you help me to understand if I'm missing something in this migration.

Below is the code snippet for your reference.

<s:iterator value="session.list" var="menu" status="s">
  <s:property value="id" /> // working

   ${menu.id} // Not working
<s:iterator>

Thanks,
Murali