Hi there, @Take_Thai_KY and welcome to the Community 
The new reviews/owner replies don’t appear in the widget right away because of the cache, which is 72 hours in our app.
Once the cache period is over, the widget will be updated and your reply will show up.
However, I totally understand your point regarding the instant updates and we already have request for the Refresh button. Feel free to upvote it here 
- Manually refresh