Apm data stopped coming after I upgrade my deployment from 8.10 to 8.15 version

Hi Team,

I have recently upgraded from 8.10 version to 8.15 version. immediately after the upgrade the data is not coming. I can see events from the agents installed in the application side is returning 202 but I am not able to see any data in the UI in kibana APM services and in discover also

Can anyone please help?

Thanks,
Surya