The PokerTracker 4 Ignition hand grabber saves live hands to:
C:\Users\{Windows Login}\AppData\Local\PokerTracker 4\Ignition
Ignition (Bovada/Bodog) Hand Grabber Guideand after auto-importing (Play Poker -> Get Hands While Playing) they get archived to:
C:\Users\{Windows Login}\AppData\Local\PokerTracker 4\Processed
Guide: Processed Filesso you don't want to import from those files again since grabbed hands do not contain hole card data for every player.
Hands you download from the Ignition client after 24 hours get saved to:
C:\<skin name>\Hand History
or
C:\Users\{Windows Login}\AppData\Local\<skin name>\Hand History
Those hands should be imported into PokerTracker 4 using 'Play Poker -> Get Hands From Disk'. Hands manually imported using 'Play Poker -> Get Hands From Disk' do not get moved to the PokerTracker 4 'Processed' folder but you can manually archive them yourself after importing:
Ignition (Bovada/Bodog) Manual Import of Hand Histories Guide