In browsing through my Content menu I noticed that there was an update for my Carenado PA44 Seminole from ver 1.0 to ver 1.1 - so I went ahead and clicked on Update.
At the end of the update a message indicated that the update failed in Library - I have no clue why or what is meant by this.
Obviously something went wrong but I do not know how to reverse it. My favorite aircraft is now not even displayed as available.
My MSFS is at the latest version 1.11.7.0
Go into your folders where you installed it. You need to find a folder that contains two folders one called
Community and one called Official.
Go into the official folder and look for a folder that contains the name of plane. It will be obvious. Delete that folder and then restart msfs (I mean delete the folder that is the plane)
Once msfs has been restarted, go in to your content manager and download it afresh.
I would advise restarting msfs after it has installed and then all will be ok.