Welcome to the Community @DaffyLisa! In addition to great advise that @Rich_Laue has provided, you should also check out these syncing troubleshoots. Make sure that there isn't another bluetooth device that may be creating interference during the process. Setting up your tracker as a new device may also help you to bring it back to sync as usual.
Hope this helps. Let me know the outcome.
Best AnswerWelcome to the Forums @threeceltichors! If you have tried the troubleshoot provided above and it's still not syncing, I recommend that you reach out to our Support Team. I know that they're always happy to listen to your experience and provide different options for you, if needed!
Keep me posted!
Best Answer