I'm not sure if I should make this a separate post, but I think I have concrete proof that at least part of the 3001 error is on SE's side.

As I described above, my character was stuck zoning into the Sacrarium on May 22. At that time, my job was level 90 Corsair / 45 Black Mage. This is still confirmed when I bring up the character selection page (which I have been doing regularly, hoping the problem would resolve itself.)

However, on the LS Community site, my job is still displayed as Summoner/Black Mage, the job combination I had before logging in that morning. It has been 12 days since I became trapped, and in that time LS Community has failed to update my character properly. Others have confirmed that LS Community is working properly since that time, and I am not currently equipped with any gear from the latest update, in case there was any difficulty there.

If LS Community cannot tell what job I am currently on, then it is not just me who is experiencing an error with my character. I would greatly appreciate a response from SE on this matter, even if it is just a "That's interesting, we'll look into it." I posted a separate request in this thread back on the 25th, and while I knew I was asking for a lot, I expected at least a reply of some sort from SE.