After a game has been counted, hoovering any of the presented variations results in every single stone on the board flashing on and off like a christmas tree. I have not managed to fix it, updated all my pilotes, tried to clear cache, and whatnot, nothing works.
Many of my friends are experiencing the same issue.
You can see the “sync” button if you visit a review or demo … syncing lets you “follow” the reviewer so that you see them move back and forth and do other variations.
If you then click a variation in the chat, or one of the moves in the move tree, you stop “following” the reviewer and thus are out of sync … that’s where and when the sync button appears, so you can switch back to following the reviewer.
If the reviewer has left the review, then “sync” brings you back to the move where the reviewer left.