The feature "Reverse on Roll Off" does not appear to work.

I have a simple button set up with an On Roll Over event to Play an Animation. The button works as intended.
However, I have the "Reverse on Roll Off" checkbox ticked, presuming it would automatically apply a "Reverse" command to the Animation when the mouse cursor Rolls Off the button.

It does not.

Due to the nature of my button and animation design, setting up separate "On Roll Over" and "On Roll Off" Events on the same button is not an option, because the various combinations of the "Hide Before Animating" and "Hide After Animating" options would cause my animation to disappear completely depending on the button activity.

Through Google Search I saw another reference to this bug from 2017, with Adobe's reply being that this is a "SWF only feature", and would be documented as such. However, in 2025, and publishing in the EPUB format, this feature should either work correctly or be removed as SWF is long since deprecated as a format.