@caseyliss Hi. Have you heard of this Time Machine backup failure in macOS Sequoia that has hit a number of people, including myself?
It goes like this, a backup fails with the message "Time Machine did not finish backing up because some files were unavailable. Backups will resume when your Mac is unlocked."
My Mac Studio never sleeps, and there is no screensaver password. The backup failed while I was using it, in fact. There's no "unlocking" to be done...
I started seeing this upgrading from 15.0 to 15.1.1. No backup has completed since.
Thread about it here, and end of page 2 I post some TM logs with many errors:
https://forums.macrumors.com/threads/time-machine-error.2437741/
An excerpt from the logs:
2024-12-03 10:16:32.057 E backupd[268:3b4241] [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
2024-12-03 10:16:52.894 I TimeMachineSettings[37622:3b4c2f] [com.apple.TimeMachine:LogLimits] Limiting logging for limit: aFewTimes key: "map auto_home"
2024-12-03 10:16:57.274 E backupd[268:3b4af1] [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
2024-12-03 10:17:00.804 I SystemUIServer[826:3b491d] [com.apple.TimeMachine:LogLimits] Limiting logging for limit: aFewTimes key: "map auto_home"
2024-12-03 10:17:19.886 E backupd[268:3ae197] [com.apple.TimeMachine:FileProtection] Failed to acquire device lock assertion for '/Volumes/com.apple.TimeMachine.localsnapshots/Backups.backupdb/Sedona/2024-12-03-094741/Data/Users/blake/Library/Containers/com.mollysoft.MuffinTerm/Data/Library/Application Support/com.mollysoft.MuffinTerm/V1/MuffinTerm.bbsdata' (assertion state: <dropped>), error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"
2024-12-03 10:17:56.279 E backupd[268:3b4241] [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
2024-12-03 10:17:56.886 I TimeMachineSettings[37622:3b4a0c] [com.apple.TimeMachine:LogLimits] Limiting logging for limit: aFewTimes key: "map auto_home"