Gap or Space between Upper and Lower Teeth, after Invisalign Treatment. (photo)

My invisalign treatment on fixing my overbite has been going on well and almost done. I'm now on 36/38. I'm quite happy with the new alignment of my teeth. However, there has been a large horizontal space between my upper and lower inner teeth. This is unacceptable especially when I remove my tray and while eating. In fact, I can't use my inner teeth to chew at all. I'm afraid that there will be no improvement on this at my final tray. I wonder how other Invisalign cases resolve this gap issue?