Analysis board no longer showing best move?

Is it broken or is there a option to turn it on?

Hello,

Yes, in the menu (bottom right), there's a button that you can turn on/off.

Are you sure that computer analysis is enabled? To check, click on the menu button below the list of moves and see if it is. If it is enabled but you still don't see the computer analysis, please share your OS and browser version, and also look if your browser's console / development tools (for whatever browser you are using) show anything informative. This will help developers to reproduce and fix the bug, if it is one.

Edit: didn't see the message of @Gaby_Groseille because I was typing :)