Great diagnostics, thanks Darin, you have provided some good material to work on.
It confirms a problem which we are experiencing in our testing and are working to resolve as a top priority.
We have an ideas of where the problem lies (inconsistency in iPhone (iOS) HTML localStorage) , but it will take while to nail it down.
The fact you are getting the timer showing 5:00 but no time showing below is the fault condition that a number of users are reporting but we are having difficulty replicating “in the lab”. If we can’t replicate, we cant fix!