AutoUpdater now says that there are no new files when I start it therefore it seems as if it is truly finished this time.
The files it downloads are different each time.
I think what was happening before is that some content had to be updated multiple times. For example:
After all the content is updated and AutoUpdater says "ready to play", you must fully close and restart AutoUpdater to check for anymore updates. Then, it will find more updates. Then, when those newer updates have finished downloading, you must once again fully close and restart AutoUpdater. It will then check for more updates and then download those. After repeating this procedure a few times (around 3 to 6 times, I can't remember exactly), AutoUpdater will finally truly finish.
If you don't repeat that process around 3-6 times, then you will have missing files or old versions of files and you won't know it until the next time you open/start AutoUpdater, at least that's what seemed to happen with me.
Now, every time I check and every time I open AutoUpdater, it says "no new files" so now all the downloads/updates seem to truly, finally be completed
