Color Picker instantly changing color instead of just picking it

I have a student whose color picker is acting wonky on Adobe Animate 2024. It instantly changes from the color picker to a gradient bucket with a lock on it and fills all of the art on the layer. I thought the color picker was supposed to act more like Photoshop where it changes just the swatches and then he could draw a new line with that color. The paint bucket popping up is frustrating. Anyone know what is going on?