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.
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.