Separator on the last UITableViewCell not added?

This is how my UITableView looks like:

I might cut the image to close to the last cell but there is no separator on the last cell.

When running this on my device that has IOS 7.1.1 It gets the same result until i scroll the view up and down a bit and then it automatically adds the separator. But trying that in the simulator which is running on IOS 8.2 as you can se nothing happens.

So what i want is simply so the separator is visible from the start.

Many thanks