Greetings, Technical Support team.
I'm posting with regards to an error that has gotten worse since 4.5, but is an extension of an error I've been receiving since 4.1.
Upon the release of 4.1, when launching the game from my main Windows account via Steam, I received an "Unable to complete version update. [30419]" error, no matter how many times I attempted to launch the game or log in from the launcher. At this time, creating a new Windows user account and launching the game from there completely resolved the issue, so I did not pursue it further.
However, ever since 4.5's launch in January, the issue has gotten worse. I've begun receiving the error on the new user account I created to circumvent the initial problem, and it's reoccurring in the exact same way every time.
Simply put, a fresh reinstall of the game from Steam will work exactly once. If I use Steam to uninstall the game, reinstall it, and launch it for the first time on the new reinstall, the game will load, patch properly, and allow me to log in. However, should I either close the launcher during that install process, or close the game after logging in and playing, and attempt to open the launcher from Steam again, the following situation occurs, as documented by the screenshots in this Imgur album:
https://imgur.com/a/B5nXjp9
This is 100% replicable on my machine, and even complete reinstalls of Windows and creating new Windows user accounts has not provided any succor for the issue. Naturally, reinstalling the game and downloading many GB of patches every time I wish to play is not a situation I wish to continue.
I have confirmed that the requisite ports are forwarded and there is an exception for FFXIV in my Windows firewall, and I have gone through all of the Internet Explorer setting changes and updates as recommended in previous OF posts regarding the same issue, but none of those measures have helped.
Please assist!