I think this is a hard issue to explain, but as a curate part of a tree I often manually go from higher level taxa (such as Family Arionidae)…
…to lower taxa (such as Genus Arion) by manually clicking on “Genus Arion”, with the tree display being preserved between clicks and backspaces.
However, I have noticed that whenever I click on a taxon of a rank between Genus and Species (such as Subgenus), it automatically sends me to the taxon range map for the taxon like so.
This is not a major issue, which is why I did not bring this up until now, but it gets more annoying with each consecutive time I am curating portions of the tree that include ranks between Genus and Species.