"Show Aura Icons" - Automation and Skitterbots.

Options > UI > Gameplay > Show Aura Icons.

When this is disabled, Automation and Skitterbots are still shown in the top-right of the screen. This makes it possible to accidentally right-click them off by accident, forcing you to turn them back on through the skill bar. I know these are not "auras" per say, but they are definitely persistent, toggle-able skills in a similar category.

If this is not a bug, a toggle specific to those kinds of buffs would be helpful.