Well, maybe the problem is with model or textures?
I'll give it a try, yet I first backup my files and finish making some modding actions towards making my modded mod :D ALX-compatible. (well, I'm running EB with FC, MiniMe and my own changes on ALX right now, but as I moved it from BI to ALX in the middle of campaigbn, I haven't added Night Battles and Night Warrior traits; I'm gonna prepare that in case I'd like to play it againg in full on ALX before EB 1.1 appears on the scene...)
I'll try to replace original EB praetorian cav models/textures with those made by KingLouiseAssurbanipal for Roman cav (or sth similar) and see, what happens.
That could be an interseting thing... yet may be dangerous too. So I have to be backupped :D