Immediately after Dale frees Plato, a shot of Gadget and Chip shows that Gadget has a large black nose, like Chip's. Her nose is usually smaller and pink.
When Gadget saves the rest of the gang by showing up with the Ranger Plane, the plane already has the Rescue Rangers' logo. This makes no sense as the Rescue Rangers had not yet formed their partnership, much less selected a logo. Gadget shouldn't have known to include the logo yet.