OPS/MVS 14.0.00 and later.
Accidental issuance of the 'W' (Work) command in panel 4.11.2 is the primary cause. Additionally, verify if PTF LU19818 is installed. A mismatch between the panel version (e.g., OP4112VS) and the corresponding REXX programs (e.g., OP411002, OP41100E) can prevent the confirmation panel from appearing as expected.
To prevent accidental mass updates:
While you cannot disable the 'W' line command specifically within panel 4.11.2, you can secure the underlying SQL commands. Please refer to the Broadcom documentation on to restrict unauthorized modifications.