Unknown green light flicker in some images

[vigge50]

Hello
I wanted to do a animation but of some strange reson there some kind of green light in some places that changes in the pictures. Then you later put all together in a video it looks like the green light flicker and I have no idea what the light is coming from, anyone here have an idea?

Here the light is over the kitchen, I know that it's maybe not so easy to see in two picture but can't upload all.

Here is a video there I have but it all together and as you can see it's green light over the kitchen, over the stair case. There is also something strange beside the fireplace.