After the last GCM app update to version 4.29 there is no list of exercises in the cardio training summary. Perhaps it's not the GCM app update issue but rather firmware update issue. Hard to say since both happened in the same time approx.
So far it was possible to see what exercises the training consisted of, how many repetitions were made in each series and what weight was used.
Now there is no such information. That's a shame.