Paypal transactions history misses country field

We use the WPMUDev Membership plugin for upgrades. Every few months we analyze our sales by country. We download the transactions history from Paypal, import in Excel and make a pivot table on country.

Today we noticed that the country field in the download is empty. Tracking it down the country field is gone since we upgraded from the free Membership to the Pro version 3.5.1.5. We upgraded in May and exactly on that date the country column went empty.

Where did the country go? Is it a known feature of the Pro version? Did we miss to set an option?

https://www.ads-software.com/plugins/membership/