Strange lighting bug on landscape/water plane (HELP!)

[Cuplacakes]

Fixed it by moving my dominant light. Huff. Stupid UDK/

[Cuplacakes]

Any idea what is causing this new issue?

[Cuplacakes]

Don't know why I didn't realise it was that. Cheers ufna.

[ufna]

What's the lightmap resolution on ocean plane?

[Cuplacakes]

I'm relatively experienced with the UDK, but I haven't the foggiest what's going on here! Contest deadline tomorrow! Please help!