Ancient issue, see here: https://www.ritlabs.com/en/auth-forums/forum4/topic16475/message58038/#message58038

It's a good thing you figured out which is the correct version, otherwise all kinds of madness can ensue. If you want to clean up everything, I suggest the steps from the above link. I don't know if this happened during a automatic update, but I always recommend avoiding the automatic updater. Use the "NAU" version of the installer, and make sure it points to the correct installation folder. And afterwards recreate the pins and shortcuts you manually created before, as they tend to stop working even when the installation folder is the same.