The problem of the time axis of Interactive Trend is not moving?

When the page is open, the time axis of the Interactive Trend is not moving? Sometimes, by adjusting the scrollbar in the lower part, the timeline can be moved, Sometimes the timeline is still not updated, why?
Groov server for win R3.4b (r42883) is used.

The fist graph, the time does not update.The second is the adjusted effect. why?

It’s already working:+1: