Scratch

This project

is level 13 of my new project. 10 level version is already released, so go on that to get how it works. Then, I need your help for a particular problem I am running into.

Now, if you have ever managed to get to level 7 of the game, you'll know how the lock and key works. For those who haven't reached level 7 or played at all, when you run over the lock, if you have previously run over the key, you're safe. If not, you die. Levels 7, 8 and 10's (possibly 11, I can't remember if level 11 had a lock and key or not, basically every level with lock and key) lock and key system's work apsolutely fine, but on level 13, for some reason, if you hit the lock before hitting the key, you die but most of the squares you have ran over aren't reset. 

Why? Is it something to do with the one-way system arrows, which are introduced in level 13?

I'll give 3 love-its to the person who solves this problem. This project is taking weeks, and it would be SO helpful if this was worked out. I'm planning to go to 100, and this is just 13.