Bug Error in scroll view when drop frame

When the frame is dropped, the scroll coordinates will be NaN.

Frame drop occurs while scrolling
The value of Time.unscaledDeltaTime will be 0.

It was confirmed in the following way.

private void LateUpdate()
{
float deltaTime = Time.unscaledDeltaTime;
if (deltaTime == 0)
{
ScrollRect scrollRect = GetComponentInParent<ScrollRect>();
Debug.Log(string.Format("anchoredPosition....{0},{1}", scrollRect.content.anchoredPosition.x, scrollRect.content.anchoredPosition.y));
}
}

anchoredPosition....0,5715.194
anchoredPosition....0,NaN
anchoredPosition....0,NaN

My Unity version is 2021.1.271f.

I'm looking for advice from someone who solved this.

Thank you in advance.

 

How many entries are in your scrollrect?
Honestly, if it's a lot, I would look into a recycling scroll rect that uses object pooling.

 

This happens with both reuse scrolling and regular scrolling.
It also happens that scrollrect has 10 counts.
There doesn't seem to be any problem with the count and scrolling method.
Expected to be a bug in scrollrect.

 

See here for a thread on the same problem (and a simple solution)