The Comment icon is not present beside the runid of the execution within the Execution list.
However, if right-clicking on the execution->Comments, the comment is visible.
Product: CA Automic Workload Automation - Automation Engine 24.2
Product defect
The issue has been fixed from AWA v24.3, which can be downloaded from the link below.
https://downloads.automic.com/downloads/quick_start/aa
Release note: