My understanding is that courts ruled that some (though not all) of the 2007 expropriations were made without proper compensation.

Compensation is complicated.

As far as I recall, in Guatemala, United Fruit had undervalued the worth of their land to reduce their taxes. So when they were compensated for the nationalization of their land based on their own valuation, they said that they were under compensated. United Fruit complains helped trigger the US intervention.