Finally I figured out why #Xcode could not resolve breakpoints in the #Nextcloud desktop client extensions. That was tricky to trace down.
In a nutshell: Make sure your dSYMs are in a directory indexed by Spotlight and not some dot-directory or other excluded location.
Iva Horn
Xcode Breakpoints in the Nextcloud Desktop ClientWhen attaching Xcode to the file provider extension process of the Nextcloud desktop client, the debugger connected just fine — but every single breakpoint was displayed hollow and in dashes which means Xcode cannot associate the position with a line of code on disk. Tracking down the root cause turned into quite the adventure.