Thank you for you report about this. To be able to submit a report about this, a bit more information would help with this.

Since toggling with "Z" does not provide an indicator in chat, was AoE not turning on at all, or the status could not be seen?
Was the widget moved to a different location where it was not immediately noticeable or hidden? Resetting it would have moved it back to being visible in this case.

Hopefully with that information we can better determine if this is a error in the game, a suggestion on improving the widgets, or valuable information for new customers.