The Android,load material Pak for android .The material no show?

make android material pak:
1、cook content for Android ASTC
2、package pak
@anonymous_user_add01a93 off
set RootPath=“E:\Program Files\Epic Games\UE_4.19\Engine\Binaries\Win64\UnrealPak.exe”
set OutputPath=“D:\Material_Android_ASTC.pak”
set StrSrcPath=“D:\Temp\bat\Package.txt”
set Compress=" -compress"
set Encrypt=" -encrypt"
%RootPath% %OutputPath% -create=%StrSrcPath% -platform=Android_ASTC -installed -UTF8Output -multiprocess -patchpaddingalign=2048
pause
3、loadPak is success: getscalarParametervalue material is valid.but material no show!
4,load mesh or texture Pak is visible.load material is no visible
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