Experiencing an increased amount of crash reports with the latest release of the app. I've spent some time online understanding the meaning of Unbalanced call to dispatch_group_leave() however, I am struggling to pinpoint what's the source of the problem inside the codebase. I wish you can help me with these crash logs.
Will calling a closure from inside CoreData context's perform() will eventually result into this crash and cause leave() to get called multiple times? The main code was there for long time, the only recent change was to wrap some code around CoreData context perform() or performAndWait() to avoid concurrency issues.
