Crash on device when set TC_SimpleLightmapModification!

[bluekylin]

I want to use uncompressed texture, so I set its compressionsettings to TC_SimpleLightmapModification as the tips of this forum. It works on PC, but crashed on device.
The error message as below:
UE3SYS:CRASH:
/UnrealEngine3/Builds/BUILD-06/depot/UnrealEngine3/Development/Src/../../Development/Src/Engine/Src/Texture2D.cpp(2533):
Assertion failed: EffectiveSize == (UINT)MipMap.Data.GetBuldDataSize()
Texture 'UI2.T_Achievement0001',mip 0, has a BulkDataSize[16777216] that doesn't match calculated size[2097152].
Texture size 2048X2048, format 7

Can we use uncompressed texture on mobile platform?

[CreateNPlay]

You cant.

Just make the texture bigger to start off with. If it's currently 1024x1024 make it 2048x2048 etc.

[Solid Snake]

Actually, you can.

But you don't use that mode, you use TC_VectorDisplacementmap (assuming you are on UDK March 2012).

[CreateNPlay]

Ignore my previous, it was what i thought to be right until shown otherwise.

[aCatUDK]

Actually, you can.

But you don't use that mode, you use TC_VectorDisplacementmap (assuming you are on UDK March 2012).

thanks a lot!!! had this issue and after setting the above value i was able to get rid of the error....thanks

[TheBuilder]

Actually, you can.

But you don't use that mode, you use TC_VectorDisplacementmap (assuming you are on UDK March 2012).

Hm.. TC_SimpleLightmapModification works on my iPhone 4. I do however got some other problems that may or may not be related. Will post a thread about it soon.

Does it exist a list of what all those TC options do? Couldn't find any in the documentation.

Also, TC_VectorDisplacementmap doesn't exist in the list when I import texture (May 2012)