Mac app On this page In this section Why can’t I update the Mac App? Can my network connection settings affect Sketch? What is Safe Mode and how do I enable it? Why can’t I login to the Mac app? I’m connected to the internet but I can’t register my Mac-only license Why are my custom keyboard shortcuts not working? Why is the Mac app slow? How to roll back to a previous Mac app version? Why is the Mac app crashing? Try these solutions