Issue in PAI module

Hi experts,

I am facing one issue where one of the PAI module is not being called.

Scenario :

As per the current system, standard screen 0014 in MEGUI functional group, was modified few years back and custom PAI module was inserted inside it.

*{ INSERT DSK9055258

module check_config_materials.

*} INSERT

Earlier this module was getting executed successfully and control used to go inside it as well but after EHP6 upgrade control is not going inside the mentioned module.

Please let me know the approach how to find root cause of it.