The sorting of the Agents by IP-Address (or Agent version) is not correct. There seems to be an issue when numbers have a different length - two vs. three digits.
A problem has been fixed where alphabetical ordering is applied when sorting by IP or version in the Agents list, disregarding numerical order. Because the fields were considered as simple text, numeric information was not parsed correctly, resulting in situations such as "20" appearing before "100". Parsing now accounts for numeric values and sorts them accordingly.
Update to a fix version listed below or a newer version if available.
Automic Web Interface (UI)
Automation Engine 12.1.2 - planned release date: 2018-05-23