(Media Texture on Android) BLACK OUTPUT AGAIN

I’ve bound a media-texture as a border background texture in a UMG-widget, it ran well in the version below 4.17.2, however, as the media framework has been changed a lot in 4.18.0 or 4.18.1, now the media texture on UMG display totally black in Android devices(audio worked well).
Help! Any ideas about this situation?

Dalvik debug monitor: