CGM data not appearing after Pod change

[Ericcarbonn]

Describe the bug
Since I have updated phone from iPhone 8 to iPhone 12 Mini, including migrating to iOS18 we have had the following behavior at a pod change:

1. Loop receives Dexcom CGM data in the CGM details tab, but does not make it to the BG data in the Loop main screen so closed Loop goes stale

2. Loop pump shows "Signal Issue" even if there is a correct connection to pod, manual bolus can be done and pod status log accessible

   current fix for the above 2 problems is to "kill" both Loop and Dexcom apps, reopen, insert manual BG into Loop, wait 5 minutes and it all comes somewhat back to normal

• Afterwards for about 8 hours the predicted BG does not appear on Nightscout nor on LoopCaregiver app. Magically after this waiting period the predicted BG reappears everywhere.

Attach an Issue Report
I will get this on the next pod change

To Reproduce
In our case, change pod

Expected behavior
No interruption of BG and reconnection to new pod seamlessly

Screenshots
Will get these on next pod change

Phone

• Hardware: iPhone 12 Mini
• OS Version: iOS 18.2

Loop Version

• Version Number: 3.4.4
• Repo: Loopkit/loopworkspace.main

CGM

• Device: Dexcom G7
• Manager app: Dexcom G7 iOS app

Pump

• Manufacturer: Omnipod
• Model: DASH
• Firmware version: n/a

Additional context
Add any other context about the problem here.

[Ericcarbonn]

Here is the Loop issue export and some pictures from a couple days ago after pod change. Pictures show Loop app CGM receives BG values but they do not show up on Loop main screen, and are not taken into account. It also show the signal loss issue that is present at the same time.

I force closed Loop, Dexcom. Restarted both apps. Entered current BG manually from value in Dexcom app. After everything came back to normal. In this case I did the fix within minutes after the pod was changed.

Loop Report 2025-01-15 02_36_37-05_00.zip