Invalid File Integrity, checksum is different error

The Obsidian vault is in a local folder ~/databases/obsidian, i.e. it is not synched via iCloud Drive or any other file sharing service. However, I use the Obsidian native sync service and the notes are synced to an iPhone. But I use a couple of reference notes in reading mode only. Apparently, the sync service could still change some file metadata.

For DEVONthink syncing, I use iCloud (Cloudkit) with the following settings (see screenshot). On iOS, files’ content are loaded manually, not automatically.

Happy to share any other settings.

Screenshot of DEVONthink 3 at 10_07_2024 at 11_10_50