Scratch

Im having trouble with my game, basically I have a player (good guy) who goes left right up down. I've made it so my player can't go up and down if touching the colour red (my platform colour) so I've added jumping pads which are yellow, and always at the begginning of my game when I press the green flag I can't go up and down, even though I'm not at all touching the red and the way how I fix it is just by going on the players script and clicking on the script :

<when[ up ]key pressed> <if><touching color[red]<change y by(-20)

and then it works. Why? Why doesn't it work right from the start and why does it happen at all?
I'm not sure if it is a loading problem? It is the same on all computers I've tried it on, my home laptop and my school computer so I know it is not just the PC. So is there anything I can do to stop that? The script is not touching any other script so I know thats not a problem...

Also I have a part in my game where keys show up when a certian card is at x potion 14, and for one of the keys which I called the Water Key it comes up after I click on its script, just like my problem above, why?