Print module templates doesn't change paper size as setup.

Most of the Lightroom templates (top 24) are setup as 8.5x11 paper size. Whenever one of these tempates is selected, the rulers show the size to be 8.5x11, and all is good.

If I build a custom template, and setup the paper size to be something else, say 4x6, then whenever it is selected, the rulers show the size to be 4x6, and all is good.

Whenever I go from one of these templates to another, the paper size changes to the proper size (8.5x11 or 4x6). All is good

However, whenever I change from my custom template (4x6) to one of the last three Lightroom templates (Fine Art Mat, Maximum Size, or Triptych) then the size remains as 4x6 instead of  changing to whatever they were originally setup to be.

Is this a bug? Can it be changed? I am using Windows 10, and the latest subscription Lightroom Classic CC