[Kitten]

Can't Punch or knife in a water land for example
you make a land that water passes over it you can't either punch or knife is this a known bug? i try'ed it with my friend on a blank script with a custom map that passes water over the land we can't fight (Punch) or knife

so that's the bug i found as far as i think. (not sure if this been reported already)

[Lorenc_]

Can he punch?

Number Lock? Turn that off
Restore Default Key settings

Those are my tips...

[linuxthefish]

It's a known bug. You have to make your map more near the land, or create a custom fighting system.

[omgkillerzambies]

Yes, I agree with linux.
The best solution in my opinion would be to create a custom fighting system.
May not be the easiest, but this way you can keep the map wherever you want.