Yes it was sad to see

Carlsen tortured Yi Wei before the draw (Wei played really well for what was a draw for a while and survived Carlsen's probes for a long time)

Best game was Navara vs Giri. Navara also errored according to the commentators and the guys on live chat.

This was the position when white(Navara) played Bd6 and black escaped (with Bxb2 41.Qxb2 Rxd6). Could be a puzzle as to what should have white done