Hi Mr. McDungeonMaster! I am unable to duplicate these results with these steps. But I do have some questions. By "Every entity on the map" do you mean regardless of which character they represent? I.e., if editing a goblin in this manner, do you lose sight on all goblins (possibly expected, for reasons below), or all monsters of every kind? If it is just all goblins, this behavior might be explainable due to order of operations. If you have modified one token, using the individual token's token editing interface (as opposed to the character's token editing interface-which edits the default token, instead of a specific placed token) then pressing "Apply Token Defaults" will set the default token settings, which may have darkvision turned off. If you are going to be using that button, make sure you edit the token through the character's token editing interface, instead of the token's token editing interface. If you have edited the token through the token's token editing interface, pressing the "Use this token" button before the "Apply Token Defaults button should propagate all of those changes across all instances of the token, both placed and default. If none of this helps, or addresses your problem, or I am completely misunderstanding, please give more detailed step-by-step instructions, including what interface you are using to make or apply changes. I'll see if I can help figure out the issue, or file a report through a Help Center Request (which you can also do). This is an official feedback thread, but I'm not sure how rigorously monitored it is anymore.