piece of foam sliding down over front camera. topic

It looks like there is a little piece of foam sliding down over the lens of my front camera. This happening to anyone else? It still takes pictures fine, or seems to. I'm not sure if they are a little bit darker then they should be due to the obstruction. I looked at the moto x teardown pictures on ifixit and there is a little piece of foam around the camera that I think has come dislodged on mine. I'm a little worried about trying to remove the back and fix this myself. Whenever I take phones apart I always scratch or otherwise dent the plastic somewhere. And then there is all the adhesive on the battery to deal with. Hmmm.