I've noticed a few issues with the game since the release of the Highlife DLC.
The first; when playing in campaign mode if reveal map is selected you are unable to fulfil Evard's demands and the pirate is does not appear under the diplomatic tab.
The second is a problem with the shoreline in Cape Trelawney, there is a section that is not available for building. It appears to be the case regardless of playing in campaign and sandbox mode, or what map is chosen.