Not at all. My issue is limited to when I click on "Preview Post" I don't see the animation, and my cursor, but, I think, not my keyboard, is frozen for a period of time.
And I don't recall it ever happening when I click on any of the other post/preview/delete options.
I'll pay closer attention to precisely what's happening and report back.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire