Our app uses Multipeer Connectivity and we've been experiencing this issue since iOS 14 was released.
One common theme is that the app is running in the background when the issue arrises and we get the crash.
Expected typeID 46 (CFRunLoopSource) does not match actual typeID 61 (CFSocket)
We've been trying to diagnose what is happening through our remote logging, but so far the cause of the issue has escaped us.