Please be patient. We are volunteers and don't always have time to check on the forums or other people's problems.
You have explined more clearly what your problem is... however needing to download a 1Gb file (and probably install a bunch of plugins) isn't really ideal.
What you need to do it reproduce your problem in an easy way with a new capx file. Create a scribble with 3 or 4 animation frames of coloured squiggles... then maybe make another animation entirely of dots or something different to a squiggle - making sure it also has 3-4 animation frames.
Once you do that we can help you a lot more easily. Again, it sounds like you're probably setting the "play animation from frame 0" on an action that runs every tick or constantly when a button is pressed. This will cause your frame to always be on 0 no matter what. You need to create a conditional trigger that sets the animation and animation frame only ONCE each time the condition is met - not constantly.
There are a few ways to do this - like setting the animation frame to "current frame" instead of 0 (but having a group trigger once to set the frame to 0 just in case it's somewhere else in the timeline first).
If you can re-create your issue simply, as explained, we can be more helpful.