Reply To: Crashing on launch in Sierra? You are here: Home / Latest News/Blog / Reply To: Crashing on launch in Sierra? Home › Forums › TimelineFX Editor › Crashing on launch in Sierra? › Reply To: Crashing on launch in Sierra? January 18, 2017 at 10:33 pm #5767 peterigzKeymaster Hi, I have tested on the latest version of Sierra and it seems to work OK. I do notice that it tries opening a webpage in a browser (it should open a window in the app on launch with a page open), and then I have to click on the app icon again but everyhthing works ok apart from that. Does anything happen at all, no error messages?