@GS_Guy, yes the issue exists already.
@junior: Could you help to upload a snapshot showing the problem? Would the issue disappear if turn OFF the WDR feature? Please help to advise. Thanks!
Looks like the scene is too white and the WDR agorithem got screwed up and overflowed by the 80% strong white background. Where is this device installed? at 2nd floor facing sky?
In the first floor. Currently the sun is too low, I will have to wait until spring to see if the problem is still there. If is,I will change daily the mode to normal via HTTP API.