It's a known issue, and there's just not much we can do about it because:
- If the GSX toolbar menu is closed with the mouse ( making the GSX menu Inactive ), you will lose all text notifications from GSX, the ability to call it with the Hotkey, and (most importantly), GSX won't be able to pop-up a menu, for example when you asked for Pushback, after the bypass pin is connected, a new menu should appear asking for the direction, but it won't if you closed GSX with the mouse, unless you open it again, and choose "Continue Pushback".
- If the GSX toolbar menu is closed with the X or the hotkey or after making a choice, it's not really closed, it's just hidden, so its code can continue to run and it can pop-up again when needed, and you won't lose any text messages from GSX, but the side effect is that along the BORDERS of its window, the mouse pointer will change to an arrow, assuming you wanted to resize the hidden window.
The cause is not really the GSX auto-close and making the menu pinned won't really fix this, since now at least your problem, with the menu hidden, only happens along the BORDER of the GSX hidden window, while if the GSX window didn't auto-close, its whole AREA would prevent you to click items in the VC.
So, you have two ways of dealing with this:
- Move and size the GSX window to be in area where its *borders* won't pass over things you might likely need to click in the VC. For example, using the default FMC View ( Ctrl+3 ), if the GSX window is on the top-left side of the MSFS main window, the whole FMC will be completely free of its borders.
- If you always close the GSX menu from the toolbar icon, it will go Inactive, so none of this will happen, but you must be aware that you'll lose all text notifications from GSX, the ability to use the GSX hotkey to call it, and any menus that will pop-up from GSX that might be required after a service started, the most common ones being the pushback direction, and the deicing request after the deicer arrived.
We might point this out to Asobo/Microsoft, since it doesn't seem to be very useful allowing to resize an hidden window.
