There seems to some shortcomings with regards to sorting some of the tables in the gateway webpage. See some examples
Time mostly sorts on text alphanumerically, but also sometime does its own thing. This is the OPC Connections uptime list:
Store and forward sort alphanumerically on the displayed text, not the underlying value:
Sorting names on the devices page only sort the items already on that page, not across the entire list of devices. Initial order is unknown. Adjust the list size works. This is only the device on page 2 sorted: