My cloud variables are not updating. I have a game called boxing simulator, and my friend got a million, which was the highscore. The cloud variable on his screen said 1,000,000, but after he leaves the game, that score is deleted, even though it is a cloud variable. Please help!

could you link the project?

its could be that your friend is a new scratcher. In this case, you have to become a scratcher to access cloud variables (prevents botting)

https://scratch.mit.edu/projects/599775601/ is the project that is not working. The friend also is not a new scratcher he has been a scratcher for 2 years.
The code I am using for the high score is:

when [ u] key pressed
if <> then
<[score] > [highscore]>
set highscore to score
end

Sorry, that was the first time I used the blocks.