Mirror modifier is applied, but works as if it is still on!

I applied mirror modifier after I finished retopologize my model so there is nothing in active modifiers list, but when I tried to move some vertices, their mirrored twins on the other side move too! Is it some sort of bug? How do I fix it?

Mesh symmetry enabled ?? Top right the “Butterfly” and then X Y Z ??

1 Like

Hm, you’re right. Don’t remember turning it on, and yet. Thank you!