I am not aware of any specific issues at this time. If you are playing Blitz Poker then HUD support has only just been added so please
update to PokerTracker v4.15.18 if you haven't already done so otherwise please
enable logging, reproduce this problem and then send your log file to us 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.