Upgraded the UIM environment to 20.4 and observed if we have the browser in other language different from English for example spanish and portuguese, the Inventory tab is not populated.
Release : 20.4
Component : UIM OPERATOR CONSOLE - WASP & CORE
Workaround is to change the browser to English
This is identified as a defect and fixed in Operator Console 20.4 - Cumulative Update 1
In some cases, we have seen the
probe_discovery queue was queued up, increasing the bulk size of the queue to 1000 will help resolve the issue.