Captivate 2019 - Power Point Slides "change" upon import

Hello Everyone!

I'm struggling with what seems to be a simple task.

I am importing PowerPoint slides (slide size Wide Screen 16:9).

I believe this is the correct slide size for a Captivate project set to 1280x720.

Upon import I get a dialog box saying
"the height and width of the Micorsoft PowerPoint presentation and the chosed Adobe Captivate project are not the same. This might affet the resolution of the imported slides in Adobe Captivate. But the quality is largely regained on publishing. Continue?"

When I do continue, the slides are imported, but they seem to be "larger" in scale.
I.E. Text boxes on the PowerPoint slides fit perfectly on the slides but on the Captivate slides, they extend beyond the bottom of the slide.

Can someone offer a solution to this?

Am I using the wrong settings in either application?

Thank you all!

Serko