Topic: FF400 Settings window

Hello everyone,
for a few months I have a problem:
every time I start the FF400 both the Settings and Total Mix start (as it should be), but while Total Mix is minimized in the Dock bar, the Settings window remains open.
Nothing serious, but it's bothering.
Is it possible to solve it?
Thank you.

Mac Mini 2012 - 2,6 GHz Intel Core i7 - Ram 16 Gb - High Sierra 10.13.3
Fireface 400 - Driver v. 3.33 - v 1.71