What up with that

Started to split whilst smoking I think didn’t notice any damage before I lit it. Doesn’t seem overly moist I just picked it up today so wasn’t in my humidor. Is this just an over humidified or some other reason like small crack? or now that I think of it it’s cold AF in the garage. Maybe the temp change. Hasn’t happened before though. The draw is still good so the binder is hanging in there.

It’s a Liga Privada Nine. First one I’ve had decent stick other than the giant as crack