The Rise of Tiamat module "random encounter" tokens can't be interacted with.

I bought the module for Rise of Tiamat and this is my first premade game on roll20. I am trying to set up the map and on the Arauthator’s Lair page there is a bunch of tokens I can't interact with in any way, if I switch to the player screen they can't see them either. I can find their equivalents in the journal, and manually place a token. Is that how it's supposed to work? Are they just place holders to let me know there could be something there? All the ones in this screen shot are like this. Thanks for any advice

Shift to the GM layer and see if you can interact with them. They look transparent which tends to indicate they are on the GM layer.