Hello, I noticed that the CADisplayLink seems to emit incorrect targetTimestamp and timestamp in the iOS 18 simulator. If you compute the actual duration of a frame, the duration is always a negative number.
This only occurs in the iOS 18 simulator.
I cannot reproduce the issue locally, the values I am getting for actualDuration are always positive. I would recommend first updating Xcode to the latest beta. If the issue persists after that, then please use Feedback Assistant to submit a bug report and please post here the ID generated by Feedback Assistant.
I have the same issue. The problem is reproduced during build with xcode 15.4 and xcode 16 (released) for IOS 18 Simulator devices. On real devices works fine.