'Play' spawns two characters and they just tip over

I havent altered the default blueprints or anything, I’m very new to Unreal. I’d like to walk my third person character around for correct sense of scale, but after I created a landscape the character wouldnt spawn until I changed the KillZ value which helped. However I have two characters that spawn and they just slowly tip over, they are unplayable. Any hints would be ever helpful, thank you!