I thought I already replied to this. If I did, my apologies.
I've been writing software for over 40 years. Whenever the amount of data that it has to transfer to your phone exceeds a certain threshold it stops working.
If it were really a network problem, then it wouldn't be able to...
The app really does get network errors from time to time. But when it does you have to drop the connection and re-establish it. In my view, that's a bug too but one you can work around so it's not a problem really.
Once you get this behavior you are out of luck.
I've been writing software for over 40 years. It continues to communicate with the rec tech just fine - witness the fact you can still control temperatures read temperatures and so on. The only thing it can't do is download the data once it gets past a certain number of data points.
If it was a...
It's clearly an application bug. Too many data points to send to the app. It's been happening on every long cook - you know - the thing it's best at... Been doing it for years ..