Starcraft Trigger Help (just gimme a hand here, please?)

On the Starcraft Map Editor, I set the a few triggers as follows:

1. Condition: Always.

Action: Send all units on strategic suicide missions.

Preserve trigger.

2. Condition: Elapsed game time is at least 30 game seconds.

Action: Create "#" "unit" at "Location".

3. Condition: Elapsed game time is at least 90 game seconds.

Action: Create "#" "unit" at "Location".

Triggers #1 and #2 work, but when the trigger #3 is activated, the units are created at "Location", but they are unaffected by the trigger #1. No matter what triggers I use, any units created after trigger #2 is already activated are not affected by trigger #1. All they do is appear and remain stationary.

I've already tried the following "fix":

Trigger 1

Trigger 2

Trigger 1

Trigger 3

Trigger 1

Trigger 4

Etc...(doesn't work, by the way.)

Help me out, please?