Hey @Santiago Mansilla! I’ve looked over your file and found what was wrong. Because of the way you have set up your design, you have to remember to key all of the Talking artboards to 0% transparency and all of the Mute artboards to 100% transparency in your Mute Animation. And then key all of the Talking artboards to 100% transparency and Mute artboards to 0% transparency in your Talking Animation.
By doing this, each time you swap from one animation state to the other, you are overriding and toggling the visibility of the relevant artboards that make up your character. You were halfway there when you hid the Talking artboards in your Mute animation!
I’ve attached a version of your file that I’ve updated with this fix above, for your reference.