Bookmaker Apps Portrait Issue

I have an IP Pro 12.9 and are on the latest release Of IOS.  About a month ago BFSB  (But Not BFEX) and PP starting showing all the screens in Portrait when it used to be landscape. I just though it was a problem their end so i just left it.  But yesterday I had the same problem with Skybet.  Hills Bet365 Coral & Betfred still work OK.  Every thing is normal on my Iphone.  Does anyone else have this problem.  I have deleted and reinstalled the apps but the problem reminds