The current version/build of my App appears to have developed erratic behaviour when compiled and run under Xcode 7.1.1. The problem is notevident on the same version compiled under previous versions of Xcode.I have not changed any source code from the version on the App Store.
When I select File/Revert To/Browse All Versions, I am presented, as normal, with both the 'Current' and 'Restore' document windows. If I select a date from the date-selection bar on the far Right Hand side of the screen, all works as normal - the 'Restore' window scrolls smoothly to the selected date.
However, if I select one of the Arrow buttons immediately adjacent to the 'Restore' window, the 'Current' window disappears and the 'Restore' window scrolls erratically - not smoothly.
If I select either the Current or Restore buttons under either scenario above, the selected document in correctly restored to the App window as normal but I receive the following message:
Nov 29 13:34:50 Requirements Manager[20085] <Error>: Set a breakpoint at CGSLogError to catch errors as they are logged. Nov 29 13:34:50 Requirements Manager[20085] <Error>: CGSGetSystemWindow: Invalid window
I have run the App on my late 2009 iMac (compiled from Xcode 7.1.1 and running OSX10.11.1), and I have the same problem.
I note that the current version available from the App Store was compiled from an earlier version of Xcode (either 7.0 or 7.1 - can't remember) and runs fine with both my machines.
Any Ideas?