Hey Grizz
I would guess that you finished just one side and that allowed for different amounts of moisture entering and exiting.another possibility is that the wood was not dry enough to work in the first place. If you can scuff off the finish you can spray on some hot water and clamp on some culls that over correct the warp a little and let dry. Make sure to dampen both sides and have the top elevated so equal drying can occur.
I would guess that you finished just one side and that allowed for different amounts of moisture entering and exiting.another possibility is that the wood was not dry enough to work in the first place. If you can scuff off the finish you can spray on some hot water and clamp on some culls that over correct the warp a little and let dry. Make sure to dampen both sides and have the top elevated so equal drying can occur.