Well, I managed to get on the solution to this problem.
I had created a virtual IP that would meet a new connectivity and it was the cause of my problems, even if not linked to any policy. That's because there was already an object using the same IP that I created. I'm not sure, but it seems I made the firewall did not understand what I wanted to do (would use the VIP or object).
Anyway ... just after deleting this VIP connectivities that used VPN normalized.
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