These are all symptoms of your CS:S content on the server not mounting properly. See the readme section on dedicated server preparation:
A common problem is strange issues with floating grenades, floating weapons, and
instant reloading. These are all caused by the server not having CS:S content
installed. If the issues persist despite making sure the CS:S content is there,
try moving the "cstrike" directory into the "orangebox" one, so you get
\servername\orangebox\cstrike\.