I got the dragon race desync bug today for the 1st time, I forgot to save the output log but it happened around 1:40pm BST (GMT+1) so you might be able to use that to check on the system logs, as you can see in the video, I had no way of using the in-game report tool
Also I’d like to note that you don’t get the message pop up when you get Bronze/Silver/Gold on a dragon race any more