Not being able to replace Odyssey of The Dragonlords default tokens with ones from Monster Manual when dragging from the compendium

Disclaimer: I am pretty new to using roll20 as a DM and have only used it as a player so this may be a super easy fix that I just can't figure out. I am setting up a new game of Odyssey of the Dragonlords and am running into a few issues. I purchased Odyssey of the Dragonlords to help streamline the setup process with maps and lighting and everything. I knew that some of the tokens I would have to go in and change since it's not from Wizards of the Coast and that was totally fine. The issue I'm having is that when I try to drag out the same monster from the monster manual to replace it with one that has art (the Odyssey ones are just a red circle with the name of the monster inside) the token defaults to the one that was already there. Does anyone know of a way to fix this?

If there is already a version of a creature with the exact name you are pulling from the compendium, it won't overwrite the version that is in your journal.  You will need to delete or rename any instances from the module in the journal for the compendium to load a different version of the creature.