I'm currently developing an action with Dialogflow.
As my development is stable enough to be tested, I released it as an Alpha Release and also shared it with some alpha testers.
Since the beginning, I released 10 (alpha) versions: new intents, account linking integration, but mainly Directory information changes, with a nice logo, description, privacy policy and so on...
My problem
Most of my alpha testers don't have access to the latest released version.
Actually they all have access to different (random?) previous versions of my action.
Even following the provided Opt-in link doesn't display the same version of the action (different Directory information).
I'm getting crazy, I tried removing everyone, published a new version, added all my testers back again... but it didn't help.
I think there's something I didn't get about Alpha Release...
Thanks for your help.
An additional question: do the testers have to click the Opt-in link, or should they be able to invoke my action from their Google Assistant app as soon as they're added as testers ?