So far I’ve noticed that the Revenant upkeep skills – specifically Glint’s Facets except for Facet of Nature and Vengeful hammers – drop on their own. Their buff simply disappears, the “release skill” is not activated, neither is the cooldown.
I’ve noticed this happens when switching map areas sometimes – I have consistently tested this in Plains of Ashford at the Phasmatis Waypoint when running from Phasmatis Corridor into Ascalon City Ruins and vice versa. While running through other maps and switching “map regions”, this sometimes happened, but not upon every switch.
Now obviously this isn’t gamebreaking, but extremely annoying while exploring as you drop your buffs seemingly at random.