This was also going on back in April, with reports long before that too. There was also an aft AC problem in aft public areas, which was also reported here almost a year earlier. It wouldn't keep me from sailing, but does have me wondering if Disney's upkeep standards are slipping. Between the Magic and the Wonder, only a week apart, we found the Wonder to be in noticeably better condition earlier this year. I wasn't looking for it, but within minutes of boarding the Wonder, the better condition stood out to me.
But, the Magic still seemed overall in good shape and looked better than some of the competitors in port. I wouldn't hesitate to sail on her again for the right itinerary.