From what I hear they're in the same boat as Qlink and others - struggling to crew planes. Their biggest problem is lack of Captains as a lot are continuing to move up the chain to Virgin/JQ/QF - a lot going through upgrade training at the moment so fingers crossed these issues become less frequent. Regional RPT is never perfect. Im a frequent regional flyer and I suppose I've been through enough interruptions (not just rex) to plan with plenty of buffer either side of any flight!