Incomplete review by reviewer
One answer
Unfortunately there's no nice way to see this in RRC 2.x... this is a known problem that we're currently addressing.
(If you want a really "hacky" way of doing this, you can pause the review, then, one at a time, select a participant and click "Change Status". If the option to "Set to done" is enabled, that means they aren't done.)
(If you want a really "hacky" way of doing this, you can pause the review, then, one at a time, select a participant and click "Change Status". If the option to "Set to done" is enabled, that means they aren't done.)