Since updating to the latest version of XCode (8.2 beta) I now have two problems (both only occur in the simulator, not when I run my app on my actual iPad).
1) When I rotate the screen in the simulator I get a ~5 second animation of the entire screen rotating, along with the following warning in the console:
[App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
2) When I click on a button which bring a popover view (the same problem to both popover views in my app), it adds a strange quick animation with a "flash" of white at the end, and when I close the popover view it fades it's opacity with a 5 second animation with the following console warning
[Warning] <_UIPopoverBackgroundVisualEffectView 0x7fa57c2274a0> is being asked to animate its opacity. This will cause the effect to appear broken until opacity returns to 1.
There is also a 5 second opacity fade animation of the main screen of the app itself when it first boots.
I've read and tried other solutions to these problems on here, but none of the ones I've found help...
Any help would be greatly appreciated!