There are many reasons for the inaccuracy of your chips. Sometimes, the games offered by the casino experience heavy traffic, resulting in a delay in the record of losses and winnings by the casino servers. The updates sometimes take up to an hour to update.
The payout can also get complex, and you end up getting the wrong chip total from what you are expecting after a huge win.
If you notice any inaccuracy in your chip total, contact the casino’s customer support with the needed information so that the cause of the miscalculation will be investigated and addressed.