GameMaker Sever - update 1.9.7 has been released. It features a number of bugfixes and enhancements:
Enhancement: more reliable banning of users for the (Windows) version of the extension. Changing IP-address will no longer allow users to circumvent the ban.
Enhancement: players paying for Supporter Access are no longer affected by slow chat
Fix: players are not visible when first logging in
Fix: crash (unknown variable 'value') when trying to send a float32 of float64 as a variable