Legendary Beast Portal

I finally got a captured a legendary crab. Did the crafting recipe for the portal. As soon as I beat it, was kicked back to the login screen, with it saying an unexpected error has occurred. Login back in right away, no portals to be found....

Same thing just happened to me while fighting Fenumus. I died part way through the fight and then I was immediately kicked to the log in screen. When I logged back in, my menagerie was inaccessable for one minute. When I was finally able to re-enter, my five remaining Fenumus Lair portals were gone. Not very happy.