I'm using v18.104.22.168 of Aspose.Slides.
I have a TitleBody slide in a Powerpoint PPT. If I change the design template for this slide, I get the new fonts, alignment, bullet styles, etc specified by the template. If I then clone that slide using Aspose.Slides, the new slide shows the design template background, but *not* changes to fonts, alignment, bullet styles, etc. It seems that the new slide has hard-wired these attributes and no longer accepts changes from the template. I can edit the PPT in PowerPoint 2000 itself and no matter what template I apply, the cloned slide does not accept fonts, alignment, etc from the template.
Is this a bug, or is there some way that I can ensure that the cloned slide uses values from any template?