3273137 - Read directory using the function module RZL_READ_DIR_LOCAL failed

You are using RZLCallFromABAP (RZL_READ_DIR_LOCAL) - a Kernel Function to get the list of files from a specific directory from an application server path in a custom program.  After S/4HANA 2021 upgrade, this is not working and it returning sy-subrc value 2 and not returning any file list. 

Or in the dev_w* trace, got such error: ERROR => RZLCallFromAbap is called from *** - rejected [saprzl.c 7 

SAP S/4 HANA 2021 
SAP NetWeaver 7.56

CL_FILE_UTIL, CL_FILE_SYSTEM_MANAGER, RZL_READ_DIR_LOCAL. , KBA , BC-CCM-MON-OS , Operating System Monitoring Tool , How To