SC2Mapster

I have this trigger duplicated 4 times but changing the locations, attack points and the player owner condition. The basic idea is that a Nydus Worm spawns and Units are created. This trigger fires after the nydus spawns said units. What I am trying to do is to get the units spawned to move to the listed point. I have 4 different locations the units are spawn and each of the 4 groups of units need to go to different locations. So basically I am needing it to first check where the units are spawned. If they are spawned in "Player 1 Nydus" region, then they need to attack "Player 1 Base Attack Point". If they are spawned in "Player 2 Nydus" region, then they need to attack "Player 2 Base Attack Point".

When I run this trigger I keep getting the "INVALID AREA" message that I set up as the Defeault for the switch (I guess to simulate errors in my trigger), which is spammed endlessly. So there is something wrong with my trigger because the spawned units aren't doing what I want them to. Where is my logic error?

    Events
        Unit - Any Unit Enters Total Playing Field
    Local Variables
    Conditions
        (Owner of (Triggering unit)) == 9
    Actions
        General - Switch (Actions) depending on (Position of (Triggering unit))
            Cases
                General - If ((Random point in Player 1 Nydus Spawn))
                    Actions
                        Unit - Order (Triggering unit) to ( Attack targeting Player 1 Base Attack Point) (Replace Existing Orders)
            Default
                UI - Display "INVALID AREA" for (All players) to Subtitle area