After adding UnityAds they keyboard shows sideways(portrait), when it should be landscape mode.
The work around now is to make the game change orientation at run time and then back again to original orientation. That will fix the keyboard orientation. However when unity ads should show, the following message appears and not show ads:
Warning: Attempt to present <UnityAdsMainViewController: 0x1b841810> on <UnityLandscapeLeftOnlyViewController: 0x1a374e30> whose view is not in the window hierarchy!