Sign in to your SYNCbits account on that device again then check if you see the same data as on iPhone. If yes, reinstall MoneyWiz on the iPhone as well and resume normal usage of the app. It should be syncing fine!
I was having the same problem and I uninstalled the desktop app and reinstalled and now working OK
@Rajeev, Gary: I'm happy that the issues seem to be gone now :)