Can't resize window to certain extent

[soyabeaner]

On my work PC I'm using Windows 7 x64 and my Cent Browser is mostly in a windowed state that requires me to shrink it to a little less than half of my monitor screen. The latest v3.6.8.96 prevents me from shrinking (or expanding) it beyond a fixed state for some reason and it's not always the same.  I think maximizing the window and resizing it changes the state too.

I've haven't confirmed if the same applies on my home PC's Windows 10 since I always have it maximized there.