Up until iOS 11 one could set the transform (CGAffineTransform) property of a UITableViewCell, for example to rotate the cell 180 degree. That transformation did also affect the UITableViewRowAction buttons. In iOS 11 (currently beta 6) the transformation does not affect the UITableViewRowAction buttons any more.
Since the view of those buttons is not exposed via public API, there does not seem to be a workaround for this problem.
Interestingly the order of the buttons is correct (destructive button on the right, other button on the left) but the label is obviously not transformed.
This is how it looks in iOS 11 beta 6: (EDIT: somehow the forum does not seem to display my uploaded image)