The cash-out feature may be suspended on your bet for several reasons, including the number of bets of a parlay being active, a current play being under review, the event being too late in the game, and much more! For example, a five-leg parlay with all of them happening live would be suspended because too many factors are going into the odds simultaneously. A fumble or interception is a big momentum swinger which means when an interception or fumble is being reviewed; the sportsbook will need time to adjust the odds. Late-game cash-out options will also likely be suspended, especially in a close game, because it's easy for users to take advantage of a swing in momentum (turnover or touchdown). Similarly, a significant injury like when Tua got a concussion in the Bills game could cause a suspension to the cash-out feature to determine the odds.