Move Malbec to Applications
Malbec updates itself only when it runs from Applications.
What happened
Malbec can update itself only when it runs from the Applications folder, and this copy runs from somewhere else, such as Downloads or the disk image.
The fix
Click Move to Applications.
When to write to us
If the move fails, drag Malbec to Applications in Finder yourself. Write to us if it still says this.
Email support@malbec.app. For a diagnostics file, choose Help › Export Diagnostics… in Malbec and attach the zip it saves. It has no account details, and your home folder is masked.