HS611 Air Under Work Space

I just got my HS611 off Amazon through the Huion store about 2 weeks ago. I started using it and love it, but this morning when I got up, the workspace had this odd air bubble under it that wasn't there the night before. 

I didn't do anything different with it last night. It was on my desk, with nothing on top of it, and working fine. I'm worried to try using it with the bubble in there and don't know if that's a known issue or if it's something that I would need to send this back to have looked at. 

I tried to take a photo of it, but it doesn't show up on a pic. Video is about the only way I could show the ripple effect when I brush my finger over it.

Please help?