Guild Wars 2

Nope. Tried it out just now, without Blasting Staff the tooltip displays 6 seconds, but the Lava Font still lasts only 4. (It’s easy enough to time with Fire VII)
I’ve had some guildies confirm that they’ve got this bug as well.

Well, it doesn’t look like it does.
http://postimg.org/image/5c6y2w5rn/
Funnily enough, the duration of Burning retreat seems properly increased, and the tooltip also shows 8 seconds.

So, i just noticed that on my staff ele Lava Font only appears to last 4 seconds despite having Fire XI trait. It’s been a while since i’ve messed with traits, but i could have sworn that the trait extends Lava Font to 6 seconds. Am i remembering wrong or is this a new bug, or just a display thing or something?