Proposal Implementation
Once a governance proposal passes, the changes described are put into effect by the proposal handler. Generic proposals such as a
TextProposalmust be reviewed by Terra protocol developers and the community for decisions on how to manually implement.Although parameter changes get updated immediately, they generally are not put into effect until the next epoch operation. Epochs occur every 100800 blocks or roughly every 7.7 days, given a 6.6-second block time.
This from the official doc
It may take time to implement