I I've got the 2048 block 7 times so far, and tried to send scores and it just restarts and gives nothing every time? am I doing something wrong?

Also, got to 4096 twice and the blocks disappeared :/

I was confused about this as well but was informed that this game is not supposed to reward wins (which I think is a shame). The send score button is only there to activate the achievement. Also, I think it's not really supposed to go much further than 2048. These facts made me download a game for my phone instead of playing it on here...

ah, got it. yeah, the how to play section sort of implied there would be Sp, which confused me.

Thank you for the heads up!