Please take a look at another thread to see how event handlers work in CoSpaces. The most important there is that only one event handler of a given type can be active at the same time on a given item. You can find a workaround for this in the thread linked above as well (one of them is using single “when collides with” block with “if-else” statement inside).
And btw there is no need to put these blocks inside “run parallel” and “forever” blocks.