Button from Base Layer SHowing up On Other Layers EVen though Hidden?

Thanks for the follow-up!

I'd truly appreciate it if you could take a look at this slide and tell me what I may be doing wrong that is causing the "clicked" button from the base layer to appear on the layer. 

I also noticed another issue. I had expected the initial character state (the one that's on the base layer and appears first) would again show as the pose on the base layer when the learner clicks the last of the 3 buttons and returns to the base layer. Instead, the character pose remains from the last clicked button. I am sure I am missing something simple here (or at least I hope!).

And finally, I will want the slide to resume to saved state upon revisit so that the learner doesn't have to click the buttons again. When I set it up this way, the next button is no longer clickable when they use the previous button to return to the slide, and then try to use the Next button to again move forward in the course. I have read this is a "bug of sorts" that occurs when you have layers and need to set up resume state and calls for a variable to be set up to enable the next button on revisit. Could you walk me through that process as well, particularly with the best suited naming convention for the the true/false variable?

(I should reveal that I must restrict the menu and navigation to prevent the learner from jumping ahead in my course. Then I understand I need to adjust any slides individually in the properties to override what the next button, etc for any slides that aren't behaving as needed).

Thank you so much!