L 04/21/2015 - 19:39:00: [SM] Native "TF2Attrib_SetByName" reported: TF2Attrib_SetByName: Attribute 'vision opt in flags' not valid L 04/21/2015 - 19:39:00: [SM] Displaying call stack trace for plugin "pyrovision.smx": L 04/21/2015 - 19:39:00: [SM] [0] Line 63, C:\Projects\SourceMod\plugins\pyrovision.sp::Event_PlayerSpawn()