Triggers aren't working

I'm trying to create an art gallery and want the learner to click on thumbnails of images to get to layers with larger images.  Each layer is named differently.  When I add the trigger to one thumbnail, the triggers for the other two change to the one I just added.  Never used to do that.  

It happens whether I have the user click on the image or create an actual hotspot.  

I'm in the classic view of triggers.    Help!

2 Replies