Why is Creative Cloud unaware of the 4.3 release?

A month ago, I wondered if LR would ever be updated again, then read that 4.2 had been out for a while. But Creative Cloud didn't seem to be aware of its existence, and claimed that I was fully up to date (I was on 3.9 or something). I read a lot of tips on the internet and nothing worked. I finally uninstalled and reinstalled LR and finally got to 4.2.

Now I see that 4.3 is available, but once again, Creative Cloud seems to be unaware of it. I go to the Updates tab, three dots, Check for Updates and it says "You're up to date!" even though I'm not. 

Creative Cloud is just not talking to the mothership for some reason. This is getting frustrating. Any suggestions?