Hi, guys. I have run into a crash on iPhone 4S with dynamic shadows! I was transfering game from older UDK version (march if to be exactly) to july. Only one thing that i did while transfering is changing config files (because they moved as NickBullard mentioned before).

My settings in C:\UDK\U1M1Project\Engine\Config\IPhone\IPhoneSyst emSettings.ini:

[SystemSettingsIPhone4S]
BasedOn=SystemSettingsMobile
MobileEnableMSAA=False
; Bloom (which needs DoF to run the UberPP) works on iOS but is slow
;Bloom=TRUE
;DepthOfField=TRUE
bAllowLightShafts=True
MobileModShadows=True
DynamicShadows=False
ShadowDepthBias=0.025
MobileContentScaleFactor=2.0
MaxShadowResolution=256
MobileShadowTextureResolution=256

If set DynamicShadows to True and run game on device it's crushing (if false - game is running).
No other settings were change from the defaults. One more time - game was working on march UDK. Caster of dynamic shadows is skeletal mesh with ~15.000 tris.

Here is error log:
http://imageshack.us/a/img407/7073/d...adowscrush.png