We can't control where our servos go and they're behaving really weirdly

When we press start on the mechanism, if the block code has a single servo block, all the servos will go to a certain position which I'm pretty sure is supposed to happen but I can't control where it goes when it does that.

Also, if we tell all the servos to go to the same position, e.g. 180°, (after going to their spots they go to right after we hit start), one will go in one direction, the other in the other direction, and the other just won't move. We don't know how to make them go to the positions we want them to go in. This image is an example of this

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How and where are the servos defined ?

Be sure to power the servos from a separate power supply, not from the Arduino 5V output, as that can damage the Arduino or cause it to malfunction.

Don't forget to connect all the grounds.