Report design tab does not show tag historian query parameters on 8.1.21

Hi All
I followed reports tutorial on tag historian query from inductive university. So i did what was shown and created tag history data source and dragged several tags (UDT's if its matter) which have some aliases. When i switched my tab to designer i dont see these parameters in the key browser? I hope i missed something simple but struggling to find out what it is. I tried restarting designer which did not help. Any other suggestions please?

I managed to get it working creating a new report from scratch but just wonder if other people had similar issues or if there is a way to fix it without creating a new report