Timeline Slicer Force Selection

Hello,

When turning the Current Period option on in Force Selection of the Timeline Slicer, it is visually selecting the current month (we have month granularity) but the report is not reflecting the data related to the current period selection, instead it is showing the data for the old date selection (the date selected in the timeline slicer when the report was published), and also when I click on the filter pane the current period selection is getting back again to it's old selection which is really weird, could you help me with this issue please? is it a bug?