No compile errorrs but no map in TF2

Hi,
I am hoping someone can help me get my map back into a shape which I can test.
I have checked these forums to no avail and used the interlopers website to check my compile log, which according to that is fine. Although my map seems to compile and TF2 launches fine when I 'run map', it is not there to play when I select 'start playing' from the tf2 menu, I'm just faced with the standard options for game types.
I have dealt with a few compile errors using info from the web for TF2 and CS, but this one has me stuck...
Any help greatly appreciated, I can always post the log if that helps.
Thanks in advance.

Strange, I am sure it was working through the Start Playing option before I added all the koth related entities, but now only if I create a server and select it from a list, as you suggest.

Thanks very much for your help.