I haven't seen any reports of that not working after updating to the correct version:
Please delete all PokerTracker 4 installers you have in your downloads folder (or wherever you downloaded them to).
Download PokerTracker 4 again.
Make sure PokerTracker 4 is closed before running the installer you downloaded.
Right-click the file and run as administrator.
After running the update file again start PokerTracker 4 with the logging enabled link on your Windows Start Menu.
If it still isn't working send us your PokerTracker4.log file and a
screenshot in a
Support Ticket. You can access the 'Logs' folder with the log file by clicking 'File --> Open User Data Folder' in the main PokerTracker 4 window and the file we need is the text file called 'PokerTracker4' or 'PokerTracker4.log' that is in that folder.