Why are my animations copying onto each other?

[zealous ice]

I'm new to godot and I'm trying to follow Brackey's tutorial on how to work with godot. Thing is I don't know why my animations for these platforms are copying onto each other. When I'm finished with 1 animation, and transition to another platform's animation2d node, the animation from the LAST node copies onto the new node. You can see it by the position of the platforms changing after I've already adjusted them.

[untold basin]

for me it looks like normal behaviour, just key your new animation 😄

[zealous ice]

but im having trouble doing so