I use the staff and Symbol of Swiftness a lot when running around as a gaurdian, and I have noticed that sometimes it does not make my swiftness last any longer. I think that what is happening is because of how the game prevents swiftness from adding up when you stand on the symbol. I have used Symbol of Swiftness to gain swiftness, then used “Retreat!” to give myself more swiftness. However, when Symbol of Swiftness has recharged, I use it again and it does not give me any more swiftness. It does act like it gave me more, as the white around the icon resets. I think that if I haven’t completely lost swiftness since the last time I touched a Symbol of Swiftness, then it isn’t working.