[Exiting Syndicate Screens locks game]

5 hours ago, S7ORM said:

Btw, [DE], this still occurs.

I know you said you fixed it in a hotfix -- I haven't had this issue with Konzu since -- but my Orbiter console for syndicates still results in the golden background screen when I exit. ALT+F4 every time.

FYI. I've had less trouble since I started waiting until my character appears in the area to the right of the screen before exiting completely. 
It might be that it hangs there because it's still waiting for that asset to load, but it has been broken from the loop so it wont load anymore.

[Exiting Syndicate Screens locks game]

I can concur. I had this happen happen to me the other day. Thought it was one-off. It happened again today so I Alt+F4ed. Then I went back in and it happened once more. I have added a video (Which naturally since I wanted it to happen it took a few tries) https://youtu.be/1AIBJObFBis and have pasted the EE.log here: https://pastebin.com/1iUJLfqd 

 

Perhaps someone at DE could use this info to fix this issue.

[K Drive Stuck at Unranked Due to instantly "Maxed" after a Single Trick]

Hmm... It seems to me like it's copying the display either from your warframe, weapons, or your archwing (being that it's the other vehicle). Would you mind swaping weapons/archwings to see if you can find any other change. Might help DE in identifing the issue if they haven't already figured it out.