Did Mongolian Groom show warning signs of injury before his death?

The following was tweeted showing Mongolian Groom being jogged on the track on raceday. Look at his motion and how he is favoring his near hind, the one that fractured and subsequently resulted in his death. Did the exercise rider mention this to anyone? If he did, nobody cared. https://twitter.com/BH_MDaugherty/status/1188111128401866752 R.I.P. Mongolian Groom Mongolian Groom…