Hello,
What web browser are you using for the Tactics Trainer on Chess.com? I recommend that you try out the latest version of the Firefox web browser as this should be fully compatible with the Tactics Trainer on Chess.com. Also, I recommend that you try doing a hard refresh using the "Control R" or Control F5" keys as this should help to resolve any problems with missing pieces on any Chess.com webpages.
hello,
on the tactic trainer page, new problem tries to show up but after drawing the board, no pieces show up and the opening process of the page stops.
this was not happening before the maintenance period, that is two days ago !
please have a look into this problem !
thanks