I have a TUniDBGrid linked to TDataSource linked to TFDQuery linked to TFDConnection using Postgress (PG) driver with default options.
I have two browser instances open with the TUniDBGrid. When I make changes in the TUniDBGrid in one browser instance, it goes all the way through to the Posgress DB. I confirmed this on the server using PGAdmin.
However clicking on the TUniDBGrid refresh icon in the second browser instance does not refresh the changes. Only a whole browser refresh (CTRL-F5), loads the changes.
What also works is to add a dedicated button that closes and then opens