Hi,
Have this been merged in 5.6? I still have the problem.
Also can we have a 5.6 working branch for the UI repo?

Thanks

I´m solved this problem using "RelativeMouseAt" on "ScreenPointToLocalPointInRectangle". Like this:

// Update the slider's position based on the mouse.
void UpdateDrag(PointerEventData eventData, Camera cam)
{
RectTransform clickRect = m_HandleContainerRect ?? m_FillContainerRect;
if (clickRect != null && clickRect.rect.size[(int)axis] > 0)
{
Vector2 localCursor;
if (!RectTransformUtility.ScreenPointToLocalPointInRectangle(clickRect, Display.RelativeMouseAt(eventData.position), cam, out localCursor))
return;

localCursor -= clickRect.rect.position;

float val = Mathf.Clamp01((localCursor - m_Offset)[(int)axis] / clickRect.rect.size[(int)axis]);
normalizedValue = (reverseValue ? 1f - val : val);
}
}