Timeline slicer issue Not All Records Appearing

Hi All,

Started having issues with my timeline slicer, not all records are populating even with all data range is selected:

i.e: I have 3 records between Nov 2016 and August 2017 so if I select all data range I'm getting only 2 records:

But if I remove timeline slicer I'm getting all 3 records:

I'm not sure if this issue was there before but I started having it from last Friday.

Please advise.

Thank you,

Abduvali