From what I understand- the chain is being attacked by someone who, most likely, just doesn't give a crap and likes to mess other peoples work up.

There are already now multiple Terracoin fork chains in existence, and it's quite possible that the chain has already been rewritten by the attacker who at times has had far more then 51% of the hash rate of the chain. Most likely the attacker is just either rewriting the chain, or plundering the chain by generating crazy numbers of block to make TRC to sell for BTC at the exchanges. We are being screwed.

There is another mandatory update out, which I would like to think will fix the problem, but at this point, we've been through a number of mandatory updates and the problem just gets worse.