happens to me I don't use Mac
Issues on Mac computer

You should still be able to play bughouse with no issues on "Live Chess", you can access it using this link: www.chess.com/live or choosing "Live Chess" from the sidebar on the left (after hovering over "PLAY").

I use www.chess.com/live?

Your issue is not just MAC realted it also affects PC. It is mentioned in the Bughouse Bug Thread. https://www.chess.com/clubs/forum/view/the-bughouse-bug-thread The developers are working on a solution. Thanks for reporting...
Has anyone had an issue when using a mac computer where your partner's board isn't showing up? I am using google chrome for reference.