When saving a preset, screen locks up and machine has to be restarted. Makes no difference what the inputs are. When trying to close Vmix error messsage reads "object reference not set to an instance of an object -- Unhandled". If I don't make changes to the preset, it closes normally. Once I make any change to the preset and hit 'save and close, it freezes up. Also get a screen message that Vmix is preventing windows from shutting down. Windows 11 Home. Nvidia RTX 4060. 64ram.