I suspect it's what Rick said, because I have had that happen before. I see the specific names of some Token Action buttons, that tend to be added by certain Modules or Add-Ons from Roll20 Marketplace. Ones like initiative, initiative, initiative. And Resistance-Resistance-Resistance. The add-ons are still worth-it (they give you so much more in your game, such as Maps, handouts, tokens, characters, plotlines). The GM just needs to go into Collections and remove the duplicates after adding another Add-On.