Rendering Issue in Android

HI

I have developed my 2d game using cocos creator 2.1.2 which was smoothly running, After taking cocos creator update 2.3.1(latest) i found rendering issues while switching screens with in game for Android device. Multiple time many images are not rendering and showing white rectangle there.
After lot of debugging i rollbacked by project to cocos creator 2.1.2 again and found that game is running smoothly.
In cocos creator 2.3.1 android devices are not rendering all images at a time.

Please Suggest us if there are any issue regarding rendering images.
eagerly waiting for your reply