Gaming regulators delayed a vote on approving a sports betting application from MGM Springfield Wednesday after they expressed frustration with how the document was intertwined with another submission from BetMGM, an online sportsbook that will provide many of the wagering services for the casino.

Members of the Massachusetts Gaming Commission continued into the second day of reviewing sports betting applications from the state’s three casinos, meeting for nearly five hours with officials from MGM Springfield, who outlined what wagering will look like at their property and boasted about a sports lounge outfitted with a 45-foot television.

But a scheduled vote to approve or disapprove of the casino’s application was postponed after commissioners expressed some disappointment with the document they were reviewing because it answered many questions with references to the separate BetMGM application, which is seeking a mobile license tethered to the casino.