I spend most of my day in Xcode and the only time I see this is when there's a pane with a file open that has contents that makes SourceKit choke. As noted in o

I spend most of my day in Xcode and the only time I see this is when there's a pane with a file open that has contents that makes SourceKit choke. As noted in on of my other comments, in my experience this is usually caused by code smells like deeply nested blocks, really long optional chains, or lots of casting. SwiftUI can also do it with more complex views, which is one of the reasons I've been sticking to UIKit.