Having the same problems.
Been using Edge for years and since the latest update have had nothing but problems with Triggers.
Adobe needs to revert back to the older Triggers Panel.
Could you post link to your files?
Here is the Edge file:
For the text "Website Design" I created a symbol.
In that symbol it moves into place and should then stop. (But it doesn't)
Then on Rollover it changes color to red and on Rollout it changes back to white.
I've also had many problems since last update with simple stuff like looping too.
I should just be able to click a trigger and have it play at (0) or ("start") label but it doesn't always work right and I have to play with it.
Is there a correct way to use Creation Complete with triggers or something.
LIKE I SAID PREVIOUSLY, I'VE NEVER HAD ANY OF THESE PROBLEMS BEFORE.