"Some guests are staying onboard, while others have chosen to spend the day on shore," the company said.
The itinerary included port calls to Port Canaveral, Fla.; CocoCay and Nassau, Bahamas.
Just last week, the Cruise Lines International Association introduced a cruise passenger bill of rights, stating when cruise lines will issue full or partial refunds for canceled or interrupted voyages, which many companies already offer.
Read more: Cruise Passenger Bill of Rights Introduced
In April, Royal Caribbean Cruises Ltd. reported first quarter profit of $76.2 million, up from $47 million in the same quarter last year. Revenue increased 4.2 percent to $1.91 billion. The line has 21 ships and brands including Celebrity, Azamara, Pullmantur and CDF Croisières de France.
Catherine Banks of Legacy Travel said initial reports seem to indicate the ship is functioning normally.
"If this had happened by itself and not in the shadow of everything that's happened, it wouldn't be on anybody's radar," Banks said referring to recent cruise industry troubles.
Entering peak travel season, the cruise industry is especially sensitive to negative publicity, though RCI has not reported any major problems.
Carnival, the largest cruise operator, which has also had the most ship malfunctions, had recently lowered its earnings outlook based on cancellations. And with much of a cruise company's revenue collected from on-board expenses, fewer people on board will crunch their bottom line.
"Carnival will do whatever they have to do. They will not sail with empty cabins," Banks said.