I have a copy of the code. The menu problem affects new devices too, both Android and iphone.
/* Make menu accessible in 2017 theme as a workaround | 9106175-zen SB */
.menu-test-container * {
display: block !important;
}
I will send a message tomorrow to Support asking if I can have a copy of the CSS and post it here if they respond.
Weirdly the same thing happened to two of my websites, both using the 2017 theme. I tried Android and iphone, neither worked. Eventually SUPPORT (I am hosted by WP.com) added a CSS fix, while they try and work out what is happening. You are not alone.
