Custom Alerts not working after migrating from emps to workers

Summary:

We have migrated our custom alerts (Alert composer) from emps to workers are not working.

Content (please ensure you mask any confidential information):

Below is the table constructed to display person number & person name in EMPS...It is working as expected. Data is displayed in tabular columns.

${AlertUtils.write("<table border=\"1\"><tr><th>Person Number</th><th>Person Name</th></tr>")}

${AlertUtils.loop('emps','<tr><td>${PersonNumber}</td><td>${DisplayName}</td></tr>')}

${AlertUtils.write("</table>")}

Below is the table constructed to display person number & person name in WORKERS...It is NOT working as expected.

${AlertUtils.write("<table border=\"1\"><tr><th>Person Number</th><th>Person Name</th></tr>")}