Memory increasing for seemingly no reason at all?

Nevermind - a friend suggested using the latest Godot version that has functioning video memory debugging or whatever it’s called.
There’s an absolute ton of nameless textures being created out of nowhere.

How can I track down where these are coming from? None of my game textures are 1024x1024. The characters only have textures on the face, hoodie and boots, and all of these are 64x64 aside from the face texture which is 320x320 and has every expression as some kind of screwed up spritesheet.