Issue reciving an award/advancement

I have just beaten the wither and as usual I received the advancement "The Beggining?" And one I have defeated the wither I did not receive the advancement "The Beginning". I already contacted support through Twitter and they directed me to make a report. The issue may be caused because I defeated the wither in the End dimension but I did receive a nether star . I am the type of minecrafter who wants to gain all the advancements so I would like to receive it.

Now what I'm about it say is unrelated but I heard a new update is coming to bedrock and I wonder when will it come out to play