ok ok ok ok I know I'm jumping the gun, running beta software etc... but thats who I am - a developer  

After upgrading to iOS 9 Beta 1 and reinstalling SD on my iPhone 6 it now crashes on startup. Click the icon and get black screen, seconds later it dumps out to the default iphone page to select the app again. 

reboot, restore, nothing fixes it. 

Any suggestions? Any known issues with SD that the team are working on? Any time frames? 

I'll not upgrade my iPad for now (as I use that for flying) but have only done the iPhone 6 (as I need iOS9 for work development) - having the iphone backup when flying was useful though