Sorry, but this is still happening for me, & it locked up on me as I tried dropping out of SC a little while ago
I usually tab out & kill E
with the task manager within a minute or two of this happening (and it's happened to me a lot these last 2 days, ~50% of SC/HS transitions), but I figured I'd give it a bit longer this time, and we're at 10 minutes and counting so far.
Thanks for the great job you guys are doing in finding & fixing things so far - two revisions in as many days? outstanding work! - but it looks like this one is going to take a little longer :/