Vessel 3.3.0 submenu problems

I can confirm that this looks like a bug in latest Horizon family of themes.

Just need your logo to be higher than menu items.
My test theme had textual logo and this is why I could not replicate.

I can’t quit pinpoint why this happens yet.

The temporary fix can be to add the same kind of “extension” I suggested for Dawn in the topic linked above.

You can’t add it to “Custom CSS”, but you can add a “Custom liquid” section to the Footer group and paste this:

<style>
.menu-list__link:hover {
   position:relative;
   overflow: visible;
}

.menu-list__link:hover:after {
  content: "";
  position: absolute;
  inset: 0;
  transform: scale(1.25) translateY(3.5rem);
  z-index: 3;
}
</style>