QStarz BT-Q1000XT
and CR-Q1100P loggers are both impacted by the GPS Week Number rollover that occurred on April 6 2019 and
may now report the wrong date. For a firmware fix from QStarz, please check this page:
https://qws.qstarz.com/WNRO/.
Even if your devices are affected by this issue, the latest version of TackTracker automatically fixes any incorrect dates uploaded from your device so you're good to go tracking!