Uploading asset resources in the background

1.May I ask if the Background Upload can run normally in the Release version of ios 26.1? I used the Release version of ios 26.1 for debugging and found that the background upload couldn't be triggered for a long time.

  1. I debugged in ios 26.2 and found that background upload could be triggered normally, but kept triggering an Error: "Error returned from daemon: error Domain=com.apple.accounts Code=7 "(null)"

Since you have experience with PHBackgroundResourceUploadExtension, I'd appreciate any guidance on debugging (=attaching the debugger to the extension) it during development. I've run the extension target with Photos (and my main app), then taken new photos, but process() is never called. Have you encountered this, and if so, how did you get it working? Thanks in advance!

Uploading asset resources in the background
 
 
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