NaN Input Error

[seoyeon01]

Unity 22.3.13f1

transform.localPosition assign attempt for 'TestObject' is not valid. Input localPosition is { 0.000000, NaN, 0.000000 }.

I'm having a similar problem with this.
#137

In my case, an error occurs in DOLocalMoveY.
When I Debug.Log the value of the Input Value, it seems that there is no problem.
However, in DOLocalMoveY, the value of Y is Nan, which causes the problem.

What should I check?

[Decavoid]

Show code that calls DOLocalMoveY.
NaN is usually produced when you divide any number by 0.

[seoyeon01]

Oh, I think I found the cause of the problem.
Of course it's my fault, but I think there's room for improvement

Sequence.Insert(insertTime, target.DoLocalMoveY(...));
I'm using this way.
The problem is that the value of Y is normal, but the insertTime is NaN.
However, DoTween's Log say that the value of Y is Nan!
So there was confusion in my search for the cause of it.