Testing Telon R5.1 with z/OS 2.4 LPAR.
Error occurs upon exiting the Telon Design Facility Main Menu.
This error does not occur in z/OS 2.2.
Upgrade to Z/OS 2.4
Release : 5.1
Component : CA Telon Application Generator
IBM z/OS 2.4 APAR QU58617 fixes the abend.
Bringing up the TDF is fine. Navigating through the TDF is fine. Exiting the TDF, either by PF3, or an "X" at the main menu, takes the abend.