If I open the options menu and close it, the interface seems to hang for a few seconds. I did remove plugins, to no avail. Win10, DX11. not sure what else you might need?

Does it happen every time, or only in that sector? How long was the Options menu open?

every time, any sector or even on the title screen. doesnt matter how long its open - for the video, it was only open so I could close it.

I could not confirm on my Win 10 DX11 machine - seems fine to me. I tried it in Sedina d14, both docked and undocked.

Yeah, we haven't seen this on any device or machine either.