Bug Report: Black Squares

This has probably already been mentioned by somebody already but sometimes a few squares on the board turn black or a part of a square turns black. Doesn't really do anything to the game, just a little annoying.

Also I have a question: How does the rating work?

https://www.chess.com/clubs/forum/view/how-the-rating-system-works

Alright Sorry Battle and staff I do not see an easy way to make a new bug report post so going to put It in here for you all and hope you see it.

This has happened a few times for me so I think its worth brining up. At end of game with 2 players left the points go to wrong person. In this last game It said I ran out of time (I did not as I was making moves in a couple seconds) I moved into the last spot before "RobertTHale" could check mate me. It kind of looks like its a stalemate but in normal chess he still has one move since I moved freely into last possible square. If he gets his move its checkmate. instead game over. 

So its either a incorrect stalemate function or points going to wrong person function. FYI I know I got the points but not 100% sure he did since I thought we were close in points (like 5 apart) and at end we where about 20 points apart. 

To make a new forum just go to the club home page and to the right there are things like News, Chat, Daily Matches, and other stuff, including Forum. Just click on forum and then click on New Topic. Then make your new topic!

Club home page? 

Kind of my point is not directed at 4 player chess but a suggestion that looking at the page layout as a whole might be worth seeing if there is a better easier layout to navigate. For example I see on my left menu Chess.com - Home - Play - Learn - Share (*this is where I would naturally look for a forum). Once I am in this or another forum I can see a menu on my right that says News - Forum - Chat - Etc. but that is only once I am in it do I get to see it. *NOTE: not trying to be ultra dumb just trying to look at it from as simple a point of view as the many users of the site. 

If your menu is on your left I would recommend moving it to the top of the page by clicking "Top Menu"