When executing the hub controller callback inst_list, the robot_update entry does not display the version field. This information is missing in the GUI and installed packages list, although the inst_summary callback reports the version correctly. This behavior is observed on secondary hubs after deploying infrastructure updates.
A defect in the hub controller logic prevents the version attribute from being correctly populated in the inst_list response PDS (Property Data Set).
This issue is caused by a product defect (DE677820).
To resolve the issue:
inst_list and click the green arrow to execute.robot_update entry now contains the version key with the correct value.