[detaro]

A (cache or whatever) problem that leads to the property not being set would produce exactly that result.

It also seems clear that there isn't one global list of these people and their portraits Google uses to feed these boxes: When I compare the screenshot someone posted below with what I see, many of the leaders have different portraits.

[x38iq84n]

It would be an incredible coincidence that it's just him and right at this time. Also, from Google's support thread, he is receiving the same treatment as Weinstein, apparently Churchill was added to a list of people for whom Google won't show photo in the bio summary, next to Weinstein.

[detaro]

And somehow that "list of people Google won't show photos for" applies in some European countries and not in others? Because Google is showing pictures for both of them to me.