I am not sure if it is a bug or ongoing tweaking though...
The timer for how long it lasts is going down each level
and the timer for renewing it is going up.

I've never encountered another skill/sup/spell in game that
did this.

When I first got it, it lasted about 10-11 hrs and reset at
my level in hours. Now it about 8 hrs avg. and still my level
to call it again.

If this is just being tweaked feel free to tell me to shut up :)

You must be misremembering... if you've got a log to prove it I'd be interested, but reviewing the code, at one point it was hard coded to a duration of 4 with no timer, but right now it's level/5 with a timer of level, so the duration should never be higher than 10.

Someone in my group called crusade, and I had the colors set the same
so in the speedy pk world I saw color - duration.
Aspect was a couple down with 7. Sorry for taking up time here :(