Continous symmetry and Retrocausality

Suppose you have a continuously symmetric ring, continuous such that no matter how many times you cut the ring, you can still cut it (no discretisation at any level, no atoms). Under such a scenario, for any observer, there is no way to verify if the ring is rotating or static. The only possible way is to break this symmetry by, say, putting a dot on the ring. Now, if the ring itself were charged, then without breaking symmetry, there shouldn't exist any way to tell if it is rotating, meaning the existence of a magnetic field would contradict the symmetry (as the existence of a magnetic field would suggest it is rotating; however, if it is completely symmetric, then there shouldn't exist any way to measure rotation). So, the initial value of the magnetic field shall be zero. But as soon as a dot is placed on it, the symmetry is broken, and rotation can be measured, giving a magnetic field. But if it was rotating beforehand, then there should have been a magnetic field before symmetry breaking, too. Hence, any magnetic field observed before symmetry breaking may be seen as a future symmetry break influencing past values to avoid contradiction.
Any thoughts on this view?