The new launcher is unable to update

Hello there.

I'm writing this on the day the new launcher got released, because I wanted to try it out, yes ? Everything goes right. And all of a sudden, I get an error that the launcher is unable to update and it is stuck on the installation proccess (photo included below). Can you please do something about that ? I mean, I can still use the old launcher, but it feels a little "outdated" just after the premiere of the new launcher. My internet speed is fast and I just can't deal with the new thing, because of an error. It's feels little unfair I could say.

My best regards.
Have a nice day.