Weird Shadow Issue when porting from 09-2010 UDK to 05-2011 UDK

[Praz]

We recently ported an in-house project that was initially being built on September 2010 UDK (09-2010) to the most recent version, May 2011 UDK (05-2011). The maps were fine on the 09-2010 UDK but when bringing them into the newer version I have these crazy weird Shadow issues such as in the image below:



Any ideas on what I can try to fix? These are Terrains (not Landscapes).

[TheAgent]

Just means that the light source is hitting the mountain at an angle almost the same as the angle of the mountain. Rotate the light source a bit. Or mess with its resolution i believe.

[seenooh]

And check the Cascaded shadows options in the dominant directional light... Maybe those didn't get ported or something.