It is probably An Issue With The Canadian And Portugal Servers is what I hear. Staff are aware
Chess.Com board and pieces invisible/not loading?

I tested with a couple of Canadian proxy servers and I was able to get things to load. It might be starting to resolve. Not 100% sure though.

might be a region thing yeah, cause i was a having the same issue (my board and pieces weren´t loading) but i installed a vpn and it solved

Problem started yesterday for me. Rooks are often invisible. Tried 3 different browsers. same problem. Chess.com only works right now on the mobile app. Even the mobile browser has invisible pieces
Same with me. No pieces visible