Units on incoming support not showing

BooksGarden

Spearman
I show that I have incoming support, but the unit fields are completely blank, but just on the support coming in from one particular player (who is not my tribe). The units do not show in overview or incoming units. The player sending what looks like support is not normally a friendly, so I am really hoping that these are not actually attacks disguised somehow. Other's in my group are getting the same, from the same player. Is there a new way to disguise or camo an attack to make it look like support??