Why is the Audio Mixdown window always displayed in the upper left corner of the monitor, instead of being displayed in the center?
Because that’s where you closed it the last time. Move it elsewhere, close it, and it should reappear at the new place.
No, unfortunately, after closing it, it goes back to the top left corner. I’m not a newbie. I only have this problem in Nuendo 15.
I found a strange solution. I turned off the second monitor and turned it back on, and the problem went away.