Re: Window wont open in same or even proper place on screen.
@semrocc: Thanks. I was able to reproduce it with scaling on the secondary/external display. Can you confirm, that if you turn off scaling on the secondary/external display, the problem goes away?
I can confirm that turning off scaling on the second monitor does allow WinSCP to open in the same monitor that it was closed... though it just opened in a small window, not full screen.
I also noticed that my screen scaling was set for both monitors to 150%, not 150% and 125% as I first mentioned. It seems that when both monitors scale at the same percentage is the scenario where WinSCP doesn't remember its last state. When I changed to a different scaling for the second monitor, it remembers the last screen it was on, but only opens to a small window.