Just downloaded, had to Uninstall 2x to get past sign in due to error messages for email/password. Started adding using bar code scan. Does not work smoothly. Often must hit add 2x then will say already added, THEN will the options change to ADD ANOTHER. 1 coin can take quite a few steps scanning bar code. After 20 coins whole thing logged me out. Read others had issues but PCGS responded changes/upgrades had been complete to fix the issue. When signed back in, it said NO COINS inventory