Is it something to do with the default value of the variable? I see that if I set the default value as 120, it’ll play when the timer is triggered, pressing F doesn’t switch it to 0 though. I thought that entering 0 and 120 in the box of the two ‘set variables’ would work, but it seems that it’s always going to be the default value in the details panel. I’ve been messing around with the value range, and other options in the details panel, but that doesn’t seem to work.