Héhéhé, at least I know Sandvine isn't the problem here
I am UP for a couple of hours, the two connections were from a 3.8.7 as UPs and two same 3.6.15 as leafs. The duplicates have been connected for the same time +/- 1 second (ex: 3.8.7 connected for 15:26 and the same 3.8.7 connected for 15:27) to my UP so this may be a race condition in the code. (I should have taken a screenshot, I disconected them manually before thinking about that...
).
Ciao