Chrome playing all symbols at once despite "stop" triggers?

Hi Everyone, I'm working on an animation (Edge Animate CC 2014) where several sets of events are grouped in symbols--each has a "stop" trigger at 0:00 and then a "play" trigger at the appropriate time. This works fine in Firefox & Safari, but Chrome plays ALL symbols simultaneously from the beginning (resulting in a complete mess). Has anyone else had this problem, and are there any solutions short of getting rid of the symbols and pasting their content to the main timeline (resulting in a HUGE and unmanageable action list)?

Here's the animation: Untitled

Thanks!