Error scaling video frame in MPC

There is a computer with a main monitor with a resolution of 1080p, and an HDMI TV with a resolution of 720p is connected to it. If on the main monitor in full-screen mode the picture in the MPC player is normally stretched, then when you transfer the window with the player to the TV screen, it does not want to fit the screen no matter what the video frame settings are. The image is either smaller than the screen or larger (in the case of double size). You can only adjust the resolution by manually adjusting the scale.
The error is not on my computer, so I didn’t take screenshots.

Press F11 to make window go fullscreen.

Video frame setting should be set to "Touch Windows From Inside".

The item "Correct the difference in aspect ratio of the monitor/desktop" is checked there, if this is what we are talking about (the language in the interface is not English).
Perhaps the plugin that increases the smoothness of the video "SmoothVideo Project" has some effect.

I do not provide any support for "SmoothVideo Project". I don't use that crap.

1080p and 720p are same aspect ratio. So you should not need that correction option.

Thanks for the help. The problem was really in the settings of this plugin. "Crap" or not, it doesn’t dazzle the eyes on dynamic scenes; this kind of "crap" is now on most TVs. If you suddenly have something like this, I will be happy to use it.