Button state not changing with variable

I have 4 buttons on one slide, each with a custom state called "Completed." I also have 4 True/False variables to control whether the button state should be changed to Completed.

Each trigger on the slide is set to change its state when the timeline starts. I have even included each button's variable in a text field to ensure it is being changed. However, when all four variables are changed to True, only two of the buttons move to a completed State. 

Here is the initial state:

Here are the triggers:

And here, the result when all triggers are set to True:

I have verified variable names, button names, and button state names a dozen times and still cannot figure out why these states are not changing.

Here is the weirdest part! I went to attach my Storyline file, so I deleted all but two slides: Slide 1 had buttons to change the variables (created for troubleshooting), and Slide to with the buttons displayed above. And, everything worked. Maybe there is a different trigger at play, I thought, so I inactivated every trigger on the second slide except for those shown above...and it still does not work.

Any ideas?