Hey @user79428 ,
We had a similar issue in past. That was because there was Environment ID mismatch between the latest app version and mobilesdk code. Couple of things to check here -
1. Do you have some data coming from the latest app version of is it none at all? You can look at the app version visits to verify this.
2. If you have some data, then you would need to verify what all data points are missing and then would need to debug from app if it is sending correct data. Also, you would need to check processing rules for context variables if anything is amiss in the configuration.
Do you have a debugging set up such as AEP Assurance? If not, you may need to use MITM proxy tools like Fiddler Everywhere, Charles debugger to check the incoming data from your latest app release.
Best,
Isha