Apps Capturing Screenshot seems to be broken in all kind of Android M Emulator ?

[rkrahul324]

adb shell screencap -p /sdcard/screen.png
This command giving Blank Screenshot.
In Android L Google APIs - API Level 22 , arm/x86 worked.
But in Andorid M none of the CPU and Google APIs seems to be working to capture Screenshot. Is this a known issue ? Please help me on it.