As a follow on question, I have two symbols, each with audio. The symbols do not overlap on the main timeline. Desktop browsers work as expected: audio plays in the order of the the symbols are played on the timeline. Mobile doesn't work. Whichever symbol appears first in the timeline gets its audio played. The second symbol's audio does not play. How can I get a symbol to assign itself to whatever audio channel the mobile browser has configured for the first symbol? From the "Mobile Considerations" section on this page (bottom), it sounds like this reassignment would happen automatically. Am I configuring something incorrectly?
Should I create another item for this question?