Windows 8/8.1/10 Maplelegends Client in Full Screen does weird things to my Second Montior

Hi,

I'm using Windows 11 actually, the game has been running great.
However I just have a small issue, where when I make the game fullscreen on my main monitor it will takeover my second vertical monitor with the windows / desktop behind maplelegends.
For example if I have chrome open behind maplelegends client when it's full screen, I can see half of the chrome windows zoomed in on my second vertical screen.


(sorry for the photo of a screen, there just wasn't a way to print screen this one)

This has been happening since I first got into the game, so it's not specific to the recent client update.

The only thing I have changed in the .ini file is HD Client is set to = 2

I have tried toggling High DPI scaling in the window settings, this doesn't seem to effect it at all.

My main screen is 2560x1440 landscape and my second screen is 1920x1080 portrait both 144hz.

If anyone has any suggestions to try here that would be great.