Showing multiple layers using triggers and conditions

Setup: 

I have multiple layers that I want to be shown depending on the value of a variable. I have a variable that starts at 0 and counts up by 1. 

I put in a trigger saying "show layer 1 when the timeline starts when this variable is less than 24".

I put in a second trigger saying "show layer 2 when the timeline starts when this variable is less than 23".

 

Problem:

When the score is at 0 only one of the layers is showing.  I would expect both of the layers to be showing since a score of 0 is less than both 23 and 24. 

 

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