Can't hide the visual headers

[Pigna]

With the recent March update, it is now possible to turn off the visual header in reading mode.

However it doesn't work for me (I have tried with a couple reports already).

After I go to "File -> Options and Settings -> Options -> Report Settings" and check the box "Hide the visual header in reading view", I save the file and publish it to my workspace.

When I open the report on the browser (simply by clicking the link that appears once the publishing process is done) I can still see the header icons whenever I hover over any visual.

Am I missing anything?