Why was Miguel Torres released a second time?

Last week, when Miguel Torres announced his release by the UFC, he said "I am writing this letter to inform you that as a result of my last loss, I was cut from the UFC." However, Dave Meltzer's Wrestling Observer (subscription) says the cut was not because of a loss, but rather "was disciplinary in nature."

The cutting of Miguel Torres was disciplinary in nature although it was not said what the cause was, only that he was cut. His record wasn’t bad, with a knockout loss to Michael McDonald who is going to be a top star (provided his hands don’t keep betraying him as he’s already broken them a couple of times) and a close loss to Demetrious Johnson, both top guys. He made the rape joke on twitter and was fired, then brought back, and apparently he made some sort of a similar mistake.

Given that Torres was 2-2 his last four fights in the UFC, and that his last fight, a KO loss to Michael McDonald, was back in April, the timing does seem unusual.