Hoverboard deleted after maintenance

The hoverboard I got from Twitch is now removed from my product inventory ingame after the maintenance.
I tried to claim it when the server was really laggy, right before maintenance yesterday, and it didn’t work. Now the next day when I logged on the hoverboard mount is gone.
claimed in twitch:
claimed in twitch
my product inventory and mount list visible:

my inventory:

Server Sceptrum, character Buggywuggy.