When the functions "Zoom in" and "Zoom out" are bound to certain mouse buttons or wheel, they will still function overtop of the inventory or when viewing the map. I use Mouse2 (RMB) to zoom in.
This causes a highly distracting and nauseating dolly zoom effect when attempting to organize things in your inventory.
This bug did not occur before the Tanoa patch, however it did not appear immediately following the Tanoa patch. The bug surfaced some time after the launch of the Tanoa patch yet before October of 2016. I changed no input settings, or any other settings during this time period. One day, my inventory screen just started going crazy.