I found the observer effect(quantum mechanics)

Try to store the rotation and the location value you get from the node on the left into a transform variable before calling the print string. And use the content of this stored variable to feed the print string as well as the Spawn Actor location/rotation.

This proably will make your problem go away, because in your code, Print string and Spawn Actor both trigger the execution of some part in your blueprint on the left (not visible in your screenshot), which most likely delivers different results when run again for the Spawn Actor.

See also my post here on blueprint strange effects that may happen due to the fact, that these are executed backwards.

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