Drop in subscription numbers after May 4 update

The numbers returned by the `SUBSCRIPTIONS` sales and trends report appear to have dropped by ~20% from May 3, 2020 to May 4, 2020. This drop is consistent across apps, clients, countries, products, etc. The report fields `Active Standard Price Subscriptions` and `Active Free Trial Introductory Offer Subscriptions` matched the values in the iTunes Connect Analytics portal as of the May 3 report, but the numbers in the report are 20% lower than the numbers in the portal as of May 4.
I see that there is a new field in the response called `Grace Period` as of the update launched on May 4, but this field returns 0 for all records in the report. Was this field meant to replace the missing numbers in the other fields?
This appears to be a major bug. Is there anyone from Apple who can comment on why this drop occured, and whether or not there are plans to address it?

Drop in subscription numbers after May 4 update
 
 
Q