Before the v3.2.3 release, here’s a quick fix for the left sidebar bug and the sidebar menu issue.
Paste the following code in Appearance > Customize > Advanced Options > Custom CSS :
@media (max-width: 1200px) {
li.on .sub-menu:before, li.current-menu-parent .sub-menu:before {
content:none
}
.sub-menu {
margin-left: inherit;
top: inherit;
position: inherit;
width: inherit;
}
}
@media (max-width: 979px) {
.span3.left.tc-sidebar {
display: block;
}
}