Is there a maximum number of people we can block with the new client or it's just me?

So, i've been having problems recently with the blocking feature since if i want to block someone after the game it seems like the client doesn't block him and i have no means to check it because the blocked people are not ordered alphabetically anymore, and when i try to block someone outside of the end game screen it gives me the message "YIKES Something went wrong, please try again in a moment" which is a pretty generic and vague message. I tried right now to unblock a random contact and to block another one, strangely it worked, but after that i couldn't add any more nicknames... So i ask myself: Why can't i see the blocked accounts alphabetically in case i accidentally blocked the wrong one? Is there an upper limit to how many accounts can we block or it's just an issue on my end? Oddly enough it seems that in the post game screen i can block them and it doesn't show me any error message, but i have no way to check it out...