Triggers.

It looks like the trigger for '8' is not in the swapset. If you look at the indentation, it is not indented like the others. That means its a trigger, not a trigger in a swap set. Drag the trigger in the trigger panel over the swapset name and that will add it to the swapset.

Being in a swapset is what makes it hide the other members of the swapset. When just a trigger it does not know what to hide. 

Thanks others for moving the request over here!

Ratatouille, if you can provide a screenshot of the rigging hierarchy, showing the layers around where you have the triggers, plus show a screenshot of the "Triggers" panel to show what triggers are defined, we can see if can work out what is going wrong.

Moving to Character Animator. 

Please elaborate more on what you're trying to do.  Screenshots are often helpful.

This is  the poorly named Community Help forum (which is the forum for issues using the forums).
Please tell us what Adobe application you are using so that this can be moved to the proper forum for help.

Have no idea what you are writing about. Adobe Program name? And what is your exact problem.