On Multiwan: DHCPv6 doesn't work on two interfaces

[Gamienator 0]

Hey everyone,
it's really weird. Following Settings:

vtnet0: LAN Interface

• IPv4: Static
• IPv6: Track Interface vtnet1

vtnet1: WAN Interface 1

• IPv4: DHCP
• IPv6: DHCP6
• Use IPv4 connectivity as parent interface - Request a IPv6 prefix/information through the IPv4 connectivity link
• Send IPv6 prefix hint - Send an IPv6 prefix hint to indicate the desired prefix size for delegation

Until now, everything worked like a charm, WAN and LAN got useable IPv4 and v6 adresses. Now I switched to a MultiWAN Setup and added the following:

PPPoE1(ue0):

• IPv4: PPPoE
• IPv6: DHCP6
• Use IPv4 connectivity as parent interface - Request a IPv6 prefix/information through the IPv4 connectivity link
• Send IPv6 prefix hint - Send an IPv6 prefix hint to indicate the desired prefix size for delegation

After applying it its great: PPPoE1 has an IPv4 and IPv6 adress. BUT after rebooting, vtnet0 and vtnet1 won't get an IPv6 Address anymore. And I don't know why. Does anybody got an idea?

Cheers,
Gamie