There are 8 units (in EF now 10) in the units' list. For example, 8(10) heavy troopers - by one for every civilization. Did you remove them all or only one? If yes, I don't think I will be the one to offer easy solution.
Reskinning the problematic units with Genie editor (i.e. just giving them graphics of the lower level units) can do, but is tons more effort.
How the hell did you even do that in less than 5 seconds, Lad?!