Mail signatures keep disappearing
Hello! I've bought a MacBook Pro 14" M1 this week. Something odd is happening. My customized signatures in Mail never synced, as they usually did when setting up new Macs. Then I've tried creating new signatures, but they always disappear when I quit and restart the app. I've also tried turning Mail sync in iCloud on and off, but it didn't work. Has someone experienced the same problem?
MacBook Pro 14″, macOS 12.6