I encountered a bug in “Chapter 17 : Schedulers”.
The ThreadRecorderView is not displayed as shown in the book, I can only see the title but not the rows that are supposed to appear under it (I checked that Editor>LiveView). It is not working in the whole chapter, challenge included.
I tried to test it in the Started & Final and got the same results.
Xcode is 12.4 (12D4e)
The book is Combine_Asynchronous_Programming_with_Swift_v1.0.3
Hope this helps !
have a nice day