I also had this problem with OSP.
JackC: I guess you mean you changed the line for the start map, in your configs, from 'map' to 'gamemap'? I'm running a map rotation and I'm wondering if/how that would fix it..
and the rotation files are nothing but the map file names, with two parameters after each map name to specify the min. and max. amount of players I believe, so OSP can pick a good map to play with the current amount of players.
R1CH: Good job on fixing all of these bugs and security threats. Hopefully if I can get this resolved, I'll for sure be using R1Q2 for my OSP and "TDM" servers.
If this map => gamemap change doesn't fix it for me, I'll be looking forward to seeing this cvar introduced in a later version.