We started gettting error message immediately after DB2 V11 upgrade.
Whenever IDEAL module gets some DB2 data issues its throws error message 'module DSNHDECP failed to load'.
We copied this module to DFHRPL lib of CICS region JCL then the issue resolved.
Need to understand the DSNHDECP on DFHRPL lib for V11 upgrade.
z/os, Ideal/DB2 14.0 and higher