Super steady is sharp and crisp for a few seconds and then gets blurry

[Haytch]

Has anybody noticed when using super steady. It is sharp for the first few seconds and then it just becomes blurry and less detailed. I have a video to prove this. Check it out if you notice the beginning and then towards the end the quality degrades 

[GoanGeek]

Could be focus issues due to distance.
Does it happen with other normal videos say outdoors?

I am also presuming lighting could affect its usefulness.