There have been instances where players and dealers have witnessed mechanical failures or errors during live roulette games. These can range from issues with the wheel itself, such as a bias that affects the outcome, to electronic glitches in automated tables. In some cases, players have reported irregularities in the way the ball behaves or unexpected stopping points, leading to questions about the game's fairness. Casinos typically conduct thorough maintenance and checks to avoid such problems, but when they do arise, they can affect the game's integrity, prompting inquiries, player disputes, or even investigations by the casino staff.