If the stats were shown as they should be during your session, it means Auto import had been working correctly.
Why you decide it didn't imported into hand2note database?
This is only sometimes possible, if the program has been shut down abnormally. Before turning off the PC you need to close Hand2Note and wait for a safe completion of the program.
Besides, Hand2Note as well as poker rooms you should add to exceptions of your anti-virus software and run as administrator.