Is this a glitch or what?

Ok, I solved the first problem on my game, but now there is another... :S.

There is this 1 object, when player touches it, he loses a life and teleports to the beginning of the level. It works fine on frame 1, but when I tried to do the exact same thing in frame 2, nothing happens, also the frame 1 stops working after that. The event's are exactly same in both frames, I've double checked them, I tried to use the object from frame 1, and also tried a new object, but no luck.

What I found strange, was that sometimes the object worked, when I placed in different spot, then if I moved it, it stopped working... even though I didn't change anything!?

The event is pretty simple:

Collision between player and object
>(player) destroy
>subtract 1 from lives
>create object (player) beginning of the level

edit: Well, I decided just to use restart current frame, it works, but it would still be nice to know what caused that glitch...

It's hard to tell from the given information. An updated mfa that simply shows your problem would help a lot.
Tons of things could be causing that error.