Data Labels when hovering over a line graph disappeared

[Tasha_DGS]

Hi All, We have a number of combination reports that do not have the data marker switched on as it would make the reports too busy but when in the desk top version if you hover over the marker it shows the data values for both the bar and line data, however when you view the same report in Power Bi.com these labels only appear when you hover over the bar data and not the line data.

This has changed recently as when we created the reports a few months ago this was not happening.  

Can anyone let me know how I get these back on the line data as we do not want to add the data to the chart.

Image of "hover" data label in desktop version, this is not visible in the .com report.

Thanks!