I have the same problem - running steamcmd latest update on cs1.6 server. (ubuntu server 12.04)
It gos like this: some times i don;t take my one flash but the other teamplayers take flash. It difers from time to time. i Tryed debuging mode but i don't get erros in amxx log and cs logs even in console i don't have erros. What can i do to help solve this problem.