FYI. Zénar removed this testversion for the time being.
Due to a possible bug in WCB the roomlist information sent by ZCS causes WCB to crash.
This roomlist information has been blocked for WCB in previous versions of ZCS.
Zénar will look into this problem and try to omit the bug in WCB. If that is not possible, the block to WCB roomlist request will be replaced until the bug in WCB is fixed.
Even when Zénar succeeds to omit the bug, the bug on WCB will still be there and so, it may crash again in the future.