I had this problem before, but that was just because I was apparently using a banned item. But now I'm just trying to make a regular Hackmons team and for some reason it's placing me in this tier. Can someone just please tell me what on earth causes any team in general to be forced into Inverted Balanced Hackmons? I just want a regular Hackmon team... My team consists of: Mega Gengar, Mega Venusaur, Mega Beedril, Arceus, Cresslia and Xerneas. There are 2 Lum Berries, 2 Weakness Policies, a Focus Sash and a Big Root. All have max EVs and are level 100. I've had several Hackmon teams before, all using multiples of items and abilities, and they've all worked. So what's causing this?
I've no clue what could force you into the tier. Except I think I heard something about Xerneas having max IV but doubt it's that. I don't know what device your using so I guess. For PC, try changing tier to ORAS Hackmons by menu or /changetier ORAS Hackmons. Another possibility is you not setting the tier name properly in team builder. The text box under team name, try putting ORAS Hackmons in and see if server accepts it in right tier first time.
For any team that is illegal in normal play but has not got anything that's banned in Balanced (or indeed Inverted Balanced) Hackmons it will put you into Inverted BH as default. I would advise putting Wonder Guard or something else banned from Balanced Hackmons on your team if you want to be put into Standard Hackmons as the default tier. (List of bans here: http://pokemon-online.eu/threads/hackmons-tier.30756/#post-432919