Unable to connect - Server maintenance error

Thank you for your reports, everyone! I believe this may be similar to some of the issues we were seeing with the “Version Mismatch” and Region XX-07 on this thread. I went ahead and updated the title in case some of the suggestions here may help.

We’re gathering information these issues separately, but I am curious does reinstalling the game seem to fix this problem? It seems like the latest patch may have caused some issues with specific installations.