Sequencing is a common cause of problems. Keep in mind that scripts will run in order. So if you have a script to Set Text to {score}, and the next script is Set Variable score equal to 1, your text box will be blank because the variable score doesn’t have a value yet when the Set Text script is run.
Wyz tip: Remember, subroutines and loops have to finish running BEFORE any scripts after them in the sequence will run!