Streaming Line Tile does not refresh

Hi,

I have a dashboard with one streaming line tile and one streaming card tile.

Data source type is Web API. Dataset type is without stored history. Data comes in at about one value per second. The card visual updates correctly as a realtime time tile. In the line tile on the dashboard only the time axis is moving but the line is frozen. Strange things are:

- While resizing the line chart it refreshes as expected

- In focus mode the line chart refreshes as expected (except for rare case where the line does not appear at all, even after sever new values where sent to the API)

Behaviour is the same in latest Edge browser and Internet Explorer 11.

Do you have a solution to this problem? Do you have the same problem?
Thank you very much!
Martin