HPN: OSPF and MD5 error

After the upgrade to K.15.06.0008 there is now a OSPF error on the HPN Switches when OSPF is enabled:

OSPF: RECV: Packet received on interface vl1 has its MD5 key expired: Extending life of last accepted key"

After downgrading back to firmware K.15.06.0008 the errors are cleared.
The HP Support know and reproduced this issues.