https://bugs.winehq.org/show_bug.cgi?id=10643
--- Comment #26 from Mark K markk@clara.co.uk --- Testing with Wine 1.9.15, WinUAE 2.3.3 and 2.4.0 with -norawinput command-line argument, this issue seems to be fixed.
You don't actually need an example disk image for testing, just clicking Start then after a while pressing F12 should work. But you could try ftp://ftp.amigascne.org/pub/amiga/Groups/R/Red_Sector/RSI-MegademoA.dms