Ok, I think I know what's going on. This is definitely a bug. There is still a requirement for "Relics of Ossus" that is not being displayed on the vendor. Spent some time doing dailies and got more of the relics and went back to the vendor and it let me buy 2 more items before it gave me the error.

Every time I enter the area, my companion, no matter what, is instantly killed. I've even tried bringing a companion with maxed out influence on heal and still instantly killed.

I noticed when visiting Ossus with one of my characters that the standard 252 equipment vendor sells gear for 20,000 credits each but I can't buy anything. It let me buy one item and then it always says I don't meet the requirements. Doesn't say rep or tech frags are required. Anyone else notice this? I've confirmed this on both Imp and Pub sides.

The issue seems to have resolved itself with the latest patch... It wasn't a stuck process though. Already checked for that.

So I recently got into SWTOR (finally) and I'm having a weird issue where Windows will not shut down properly after running the game and I have to hold my power button to shut down. Windows shuts down fine so long as I haven't played yet. I've tried reinstalling the client and switching to the non-streaming version of the launcher as well. Neither have any effect. Other than that the game plays fine. Any suggestions on what else I can try?