iPhone 6s plus screenshot issue

Hello,

I happened to take iPhone 6s plus(updated to IOS verison 9.3.1 and UDID:9d02769cfc1c47588fcddb4a3c61c38f7f6967ba ) screen shot by latest xcode. But the image contains black strips at both vertically on right side of image and horizontally at the bottom of the image!!

Is this an issue? Have anybody found the similar issue? Or what could be the reason for this? Your reply would be helpfull..

The image can be viewed from below link,

https://drive.google.com/open?id=0B1xresQbWNpKRUFtbGpacnRNMjQ

Regards

Ganapati Hegde