Mac or Windows?
The updater may be using files from the v2 updater previously unpacked when you ran the v2 updater sometime in the past. If you can find and delete those files before running the updater again, it may succeed in updating your system.
Sorry - that was Mac!
How would one go about finding those files????
The only FileMaker files I'm seeing (besides my data) are the plsit files in Library/Preferences.
Thanks for your help!
And apologies back. The post I was imperfectly remembering refers to problems with a windows install of the v3 updater. I don't know if the same issue applies on the mac system or not: