[IceMeteor]

For SURE, give an explanation first, what is the bug
But, if your server use sscanf, and the version isn't 2.6.1.0, use this step

Just Download this >> http://dl.dropbox.com/u/21683085/sscanf.rar
put sscanf folder in the same place with samp-server.exe
put sscanf.inc inside \pawno\include
put sscanf.dll inside \plugins

Then, open your server.cfg, add 'plugins sscanf2'
Open the pawno in \pawno, open your GM from that, and compile it

Done!