Hey Aubree -
If I were you, I'd probably open a support case on this after making sure you're on the latest version of 9.3. Would also be interesting if you publish to Tableau Public (which runs 10) and see if the same thing occurs. Same behavior across all browsers? Have you tried this with v10 Desktop? I don't see any 9.3 bugs that match your description, but assume that's what you're running into.
Hi Russel - I tried switching the options to the second parameter value - which seems pretty arbitrary but it worked! Once I republished using the first listed option it stuck.
I was using google chrome v.48.0 and I am currently using tableau desktop 9.3.3. Will update to 9.3.6.