Try clearing the browser cache. Try accessing WMS from a different browser.  Do you get the same results?
After the latest update to 3.2.780 on the cloud instance of WMS, we now see event types such as "event.type.518" and other with different numbers at the end.  The description column is also show "event.description.###".  Not sure if anyone else is seeing this in the cloud instance.  Looks like it is not looking up the correct event type or description.  Really don't want to open a case for this but may have to.
WMS Cloud - Event Type and Description are not displaying correctly.