Monster character sheet wants me to make a new character

I just started a new campaign for Dungeon of the Mad Mage.  I'm having a few problems, the most intrusive one is that I can't pull up a monster sheet to use while playing encounters with my players.  I've tried doing this from the campaign settings as well as the library settings and the same result. It always wants me to load up a 'make new character sheet'. This is the first game we're playing with the 2024 PHB as well.

I suspect that the module you have is set up for the 2014 sheet, not the 2024 sheet, and so the monsters are not set up for the sheet you're using. You can work around this by setting the 2014 sheet as the default, and adding the 2024 sheet (if you want to use it for some reason) for the players to use. This way, the monsters will open with the 2014 sheet and should work correctly.