Choosing random position and movement is not working. Help :c

[BrianK]

Hi guys, im making a Boss fight for my game, and i wanted him to appear randomly arround the screen, and move randomly to 8 predefined directions. It works with 5 of the 8 directions, but the code is exactly the same for the rest of them, can someone tell me what am i failing at?

Bug.mfa

[BrianK]

Cmon guys i need your help, i know someone here knows what am i failing at. Consider it as a challenge for you!
I need to fix this to finish this boss fight :P