Getting two animators to work together

I have two animators on two separate gameobjects. I set a trigger on both of those objects. For some reason, one of them always starts playing it's respective animation before the other one. Why is this? can it be avoided?

Thanks!

 

It hard to tell without seeing your controller, does both animator use the same controller?

If not, does the transition to play this animation have exactly the same condition and timing?

 

They use a different controller, and are both looping in a state before the state where I want them to be synchronised. They are both connected to the hopefully synced state by a transition with no duration and the only condition is the trigger, which is set at exactly the same time for both. One of them takes one tap of the skip forwards a step button (next to play and pause) longer than the other to transition (somehow my instant transition is not instant)

 

Please log a bug with your project and we will take a look