Web Sticky/Stretchy

I just upgraded to Xara Web Designer Premium v16.3 and I can't get a photo to display, on a scale to fit width vertical supersite, when given one or both of the sticky/stretchy attributes. Without these sticky/stretchy attributes the photo displays without a problem - I've tried the photo on its own layer, placed it on the pasteboard background and even tried the page background but I can't get it to display. Could someone please advise what I'm doing wrong? Thanks and Merry Christmas to all!

I just tried this and it does work. The stretchy feature only stretches the photo in one direction (tall or wide) and this can produce unexpected results.

If the photo is not showing when you preview then it might be on the wrong layer.

Select the photo and in the status bar in the lower left of the screen, it should say 1 photo selected on MouseOff layer.