The "Impressions" analytics of my apps dropped to 0 since November 11. I observe that on all my apps in App Store Connect. Has Apple changed anything on the analytics. Do you observe the same thing?
This is happening with nearly everyone.
if you notice the impressions is not zero
but it is -
(see the image below) which means it is not available at the moment.
This happens occasionally and then they fix it retroactively and they will fill old missing data.