How to get two different versions of a java task to run in a single survey?

I'm trying to run two separate versions of a task back-to-back using javascript. The tasks each run fine by themselves but when I pair them together in the same survey whichever version of the task runs first just runs a second time. I need both versions of the task to run, not a single version of the task twice. Does anyone know a way to fix this? I'm admittedly a relative novice when it comes to implement java in qualtrics so apologies if this is a simple fix!