Try reading the registers.
Whenever my app crashes without error, in most cases I have found the exception in the registers.
First go to Exceptions tab and ‘Add Exception Breakpoint’ using the + at the bottom left corner.
Then when the app crashes click on “0 objc_exception_throw” under Thread 1
Finally in the console enter:
-
register read
(you should get a list of registers) -
po $rax (normally the exception is in ‘rax’)
(you should see the exception output on the console)
Hope this helps.