Reply To: How are you exporting long multi-page solved Apple Discussions threads before Nov 20?

iCloud Photos “Optimize Mac Storage” deadlocks frequently correlate with bird (CloudDocs daemon) quota exhaustion on the Data volume, exacerbated by Bluetooth bluetoothd crashes leaking file descriptors into the com.apple.photos.VideoConversionService sandbox. Run brctl log -w --shorten to catch QUOTA_EXCEEDED errors, then purge local optimization caches via sudo rm -rf ~/Library/Photos/.photoslibrary/resources/derivatives/ and reset the CloudKit container with brctl account remove iCloud; brctl account add iCloud. For concurrent Bluetooth drops, check log show --predicate 'subsystem == "com.apple.bluetooth"' --last 30m | grep -E 'HCI|LMP|timeout' and reset the Bluetooth module NVRAM via sudo nvram bluetoothHostControllerSwitchBehavior=always; sudo pkill bluetoothd to force a clean LMP re-negotiation.