Hard Cider with large white bubbles on top

[Lego]

I have two 4 gal batches of hard cider in secondary right now and both developed a white film with very large bubbles. Both have pureed fruit added in primary. One developed bubbles a week ago and the other only had a thin film on it but now both have bubbles. I would have acted sooner but I was going on vacation the day I discovered it. I have made a few batched of hard cider now and never had this happen, but this is my first fruit batch.
.
Any suggestions what it is?
If its ok?
And how to prevent in the future?

 

[WayFrae]

I'm no expert but I would guess that it got infected from unpasteurized fruit puree. That seems the most likely culprit to me.

 

[Lego]

That is what I thought too but I put the puree in during primary and put it in before I sterilized the batch with sodium metabisulphite powder. I really thought that would have killed anything. Plus primary went fine, this issue was only secondary

 

[WayFrae]

Hmmm, that is a lot of headspace for a secondary vessel. The bugs we don't like love oxygen and that could be why you didn't see them until after you transferred to secondary. Have you tasted it yet? If it still tastes good just package it at drink it fast.