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Based on your description, this "Looking for changes" in OneDrive has several reasons that may cause it:
- Corrupted local sync cache or incomplete re-linking.
- macOS keychain may conflict after credential changes.
- File system permission issues on macOS (especially with new hardware like M4 Macs).
The fact that the same account works fine on Windows suggests the problem may be client-specific, not account-related.
Therefore, I have tried my best to research and found a suggestion that you may try:
1.You may re-download OneDrive and set it to on demand files only (as recommended).
2.Then you need to reset OneDrive. And to make sure that you won't lose any data by resetting or uninstalling OneDrive, please kindly follow these instructions: Reset OneDrive
This method was confirmed by other users in community; you may take a look to see:
https://discussions.apple.com/thread/254391634?answerId=258219618022&sortBy=rank#258219618022
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I hope this information can help you and please feel free to let me know your update in comment section. Wish you a nice day!
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