Yo, the buildteam-node seems to be stuck again (also yesterday). I have found a solution for such cases and added a test for the last received irreversible block num, so that steemworld will automatically connect to an other node if something like this happens.

The new tab "System Info" shows the last block and seconds since the last change:

Please refresh the page and it should work again. You may need to wait for 3 minutes before it will switch to an other node automatically or you can do it manually in settings ;)