On Apr 15, 2015, at 07:04 , Jonathan Taylor <jonathan.tay...@glasgow.ac.uk> wrote: > > From dimly-remembered past experience I have a feeling it could be related to > something somewhere resulting in GUI code being executed on a non-main thread.
You can at least start by trying the simple things, if you haven’t tried them already: — Make sure you have an Objc-C exception breakpoint set in Xcode at all times. — Use the Console utility to look in the system log for errors about incorrect drawing calls in your app. There’s not much chance this will get you off easily, but it’s a quick start. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com