https://bugs.winehq.org/show_bug.cgi?id=48384
--- Comment #4 from tst1@mixbox.pl --- Just installed wine 5.0rc2 and this bug does not occurs here.
By the way, I just discovered that now MetaTreder 4 works fine on plain wine with a virtual desktop (in the past it worked fine with wine-staging only), so I will stay with plain wine.
Thanks for your help and your fruitful work on wine.