Change in Tooltip?

Hey guys!

I don't know if this is due to a recent update, but my visuals that have both columns and lines are working differently than they were in the last months.

The tooltip bar only displays for the columns now. If I do a mouseover in the lines, the tooltip won't appear. Examples below:

This only happens in the PowerBI online, desktop seems fine. This would be my expected result (screenshot from desktop version):

Any thougths on how to solve this or is this really a bug? I already tried putting the measure of the line in the "tooltips", but then it displays twice when doing the mouseover, which isn't ideal.