Quote Originally Posted by schm0 View Post
I think we disagree on the idea that a range of self is relevant in any way here. It's not, in my opinion. The only reason the spell lists a range of self is because the sword appears in your hand and not five feet away.

There is no magical effect on the creature itself.

Even after the blade dissipates, it still persists in reality until the spell ends. Notably, dispel magic does not require you to see the object or effect you are casting it on, so dispel magic works when cast on the blade whether it is visible or not.

Either way, it is rather a moot point, because the result is the same. The only time such an interaction would come into question is if the spell effect was not perceptible and the caster failed to identify the spell.
Except the sword isn’t invisible.
It’s dissipated. That’s gone, until the caster (who has the spell on them) takes a Bonus Action to reform it.